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  1. We propose a method for blind multiuser detection (MUD) in synchronous systems over flat and fast Rayleigh fading channels. We adopt an autoregressive-moving-average (ARMA) process to model the temporal correl...

    Authors: Yufei Huang, Jianqiu (Michelle) Zhang, Isabel Tienda Luna, Petar M Djurić and Diego Pablo Ruiz Padillo
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:960165
  2. We consider the problem of transmitting a continuous source through an OFDM system. Multiple description scalar quantization (MDSQ) is applied to the source signal, resulting in two correlated source descripti...

    Authors: Zigang Yang, Dong Guo and Xiaodong Wang
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:782804
  3. In this contribution, the performance of wideband code-division multiple-access (W-CDMA) systems using space-time-spreading- (STS-) based transmit diversity is investigated, when frequency-selective Nakagami-

    Authors: Lie-Liang Yang and Lajos Hanzo
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:364197
  4. The application of the expectation-maximization (EM) algorithm to channel estimation results in a well-known iterative channel-and-symbol estimator (ICSE). The EM-ICSE iterates between a symbol estimator based...

    Authors: Renato R Lopes and John R Barry
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:349390
  5. We propose a new multiple access control (MAC) protocol based on complementary code-code division multiple access (CC-CDMA) technology to resolve collisions among access-request packets in an ultra-wideband wi...

    Authors: Jiang Zhu and Abraham O Fapojuwo
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:190595
  6. This paper first proposes a computationally efficient, pilot-aided linear minimum mean square error (MMSE) batch channel estimation algorithm for OFDM systems in unknown wireless fading channels. The proposed ...

    Authors: Habib Şenol, Hakan A Çırpan and Erdal Panayırcı
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:172340
  7. We analyze an optical wireless sensor network system that uses corner cube retroreflectors (CCRs). A CCR consists of three flat mirrors in a concave configuration. When a light beam enters the CCR, it bounces ...

    Authors: Shota Teramoto and Tomoaki Ohtsuki
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:930810
  8. Infrared has abundant, unregulated bandwidth enabling rapid deployment at low cost. However, safety limits on power emission levels (IEC825), large noise due to ambient lighting, and multipath dispersion remai...

    Authors: Xavier N Fernando and Balakanthan Balendran
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:891074
  9. The IEEE 802.11 protocol is emerging as a widely used standard and has become the most mature technology for wireless local area networks (WLANs). In this paper, we focus on the tuning of the IEEE 802.11 proto...

    Authors: P Chatzimisios, AC Boucouvalas and V Vitsas
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:576368
  10. Authors: Anthony C Boucouvalas
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:241813
  11. A number of attempts have been made in an effort to combine the advantages of line-of-sight and diffuse configurations for indoor optical wireless communications via sophisticated combinations of elements that...

    Authors: S Jivkova and M Kavehrad
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:201287
  12. A hybrid pulse interval modulation code-division multiple-access (hPIM-CDMA) scheme employing the strict optical orthogonal code (SOCC) with unity and auto- and cross-correlation constraints for indoor optical...

    Authors: Z Ghassemlooy and CK See
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:162417
  13. TinyTP is the IrDA transport layer protocol for indoor infrared communications. For the first time, this paper presents a mathematical model for TinyTP over the IrDA protocol stacks taking into account the pre...

    Authors: AC Boucouvalas and Pi Huang
    Citation: EURASIP Journal on Wireless Communications and Networking 2005 2005:143678
  14. In the downlink of a multiuser multiple-input multiple-output (MIMO) communication system, simultaneous transmission to several users requires joint optimization of the transmitted signals. Allowing all users ...

    Authors: Quentin H Spencer and A Lee Swindlehurst
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:960305
  15. This paper describes a multiuser scenario with several terminals acceding simultaneously to the same frequency channel. The objective is to design an optimal multiuser system that may be used as a comparative ...

    Authors: Antonio Pascual-Iserte, Ana I Pérez-Neira and MiguelÁngel Lagunas
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:864936
  16. We study the uplink performance of MIMO systems in UTRA FDD using noise rise and system load as performance measures. Results show that the uplink coverage and capacity of the UTRA FDD mode are significantly i...

    Authors: Jyri Hämäläinen, Kari Pajukoski, Esa Tiirola, Risto Wichman and Juha Ylitalo
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:756193
  17. The ability to predict transmission loss or field strength distribution is crucial for determining coverage in planning personal communication systems. This paper presents a practical method to accurately pred...

    Authors: Ming Liang and Qin Liu
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:697892
  18. Authors: A Lee Swindlehurst, Robert FH Fischer and Brian M Sadler
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:692303
  19. The capacity of a cellular multiuser MIMO system depends on various parameters, for example, the system structure, the transmit and receive strategies, the channel state information at the transmitter and the ...

    Authors: EA Jorswieck and H Boche
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:670321
  20. A serious shortcoming of current downlink power control methods is that their performance may be severely degraded when the downlink channel information is known imprecisely at the transmitter. In this paper, ...

    Authors: Mehrzad Biguesh, Shahram Shahbazpanahi and Alex B Gershman
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:624029
  21. In contrast to dirty-paper coding (DPC) which is largely information theoretic, this paper proposes a linear codec that can spatially multiplex the multiuser signals to realize the rich capacity of multiple-input...

    Authors: Zhengang Pan, Kai-Kit Wong and Tung-Sang Ng
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:612768
  22. A new blind channel estimation technique is proposed for space-time coded wideband CDMA systems using aperiodic and possibly multirate spreading codes. Using a decorrelating front end, the received signal is p...

    Authors: Youngchul Sung, Lang Tong and Ananthram Swami
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:471650
  23. Local multipoint distribution systems (LMDS), which are operating worldwide in the frequency range of 26 to 43 GHz, have large bandwidths of 0.1 up to 2 GHz but a limited area coverage of a few kilometers only...

    Authors: Ranjan Bose
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:325684
  24. We investigate the problem of scheduling for the uplink of a time-slotted multiuser multiple-input multiple-output (MIMO) system with sum capacity as the performance metric. We first consider scheduling users'...

    Authors: Semih Serbetli and Aylin Yener
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:296954
  25. This paper examines the optimum design of FIR precoders or equalizers for multiple-input multiple-output (MIMO) frequency-selective wireless channels. For the case of a left-coprime FIR channel, which arises g...

    Authors: Yongfang Guo and Bernard C Levy
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:249123
  26. We present a codeword adaptation algorithm for collaborative multibase wireless systems. The system is modeled with multiple inputs and multiple outputs (MIMO) in which information is transmitted using multico...

    Authors: Otilia Popescu and Christopher Rose
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:238617
  27. Recently, the remarkable capacity potential of multiple-input multiple-output (MIMO) wireless communication systems was unveiled. The predicted enormous capacity gain of MIMO is nonetheless significantly limit...

    Authors: Hongyuan Zhang and Huaiyu Dai
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:202654
  28. Iterative multiuser detection in a single-carrier broadband multiple-input multiple-output (MIMO) system is studied in this paper. A minimum mean squared error (MMSE) low-complexity multiuser receiver is deriv...

    Authors: Nenad Veselinovic, Tad Matsumoto and Markku Juntti
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:152856
  29. Multiple-access interference and interfinger interference limit the capacity of conventional single-carrier DS-CDMA systems. Even though multicarrier CDMA posses the advantages of conventional CDMA and OFDM, i...

    Authors: AS Madhukumar, Francois Chin, Ying-Chang Liang and Kai Yang
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:862051
  30. We extend three types of overloaded CDMA systems, by displacing in time the binary signature sequences of these systems: (1) random spreading (PN), (2) multiple-OCDMA (MO), and (3) PN/OCDMA (PN/O). For each of...

    Authors: Frederik Vanhaverbeke and Marc Moeneclaey
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:851514
  31. The problem of propagation delay estimation in asynchronous long-code DS-CDMA multiuser systems is addressed. Almost all the methods proposed so far in the literature for propagation delay estimation are deriv...

    Authors: Marius Sirbu and Visa Koivunen
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:783232
  32. Authors: Jitendra K Tugnait, Hui Liu, Guang Gong and Tongtong Li
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:720484
  33. We investigate rotated Walsh-Hadamard spreading matrices for a broadband MC-CDMA system with robust channel estimation in the synchronous downlink. The similarities between rotated spreading and signal space d...

    Authors: Ronald Raulefs, Armin Dammann, Stephan Sand, Stefan Kaiser and Gunther Auer
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:713902
  34. We design multilevel coding (MLC) with a semi-bit interleaved coded modulation (BICM) scheme based on low density parity check (LDPC) codes. Different from the traditional designs, we joined the MLC and BICM t...

    Authors: Jia Hou, Yu Yi and Moon Ho Lee
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:709437
  35. The paper considers downlink space-frequency preequalizations techniques for time division duplex (TDD) MC-CDMA. We consider the use of antenna arrays at the base station (BS) and analytically derive different...

    Authors: Adão Silva and Atílio Gameiro
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:706371
  36. Although numerous channel estimation and multiuser detection approaches have appeared for long-code uplink CDMA systems, joint performance study of channel estimators and symbol detectors remains largely open....

    Authors: Ping Liu and Zhengyuan Xu
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:616439
  37. This paper proposes a two-stage maximum likelihood estimation (TSMLE) technique suited for multitone code division multiple access (MT-CDMA) system. Here, an analytical framework is presented in the indoor env...

    Authors: Quazi Mehbubar Rahman, Abu B Sesay and Mostafa Hefnawi
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:601464
  38. We consider the problem of blind (i.e., without training sequences) linear mitigation of multiple-access interference in the uplink of quasi-synchronous multicarrier code-division multiple-access (MC-CDMA) sys...

    Authors: Giacinto Gelli, Luigi Paura and Francesco Verde
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:458564
  39. When combining a multicode CDMA system with convolutional coding, two methods have been considered in the literature. In one method, coding is across time in each multicode channel while in the other the codin...

    Authors: Jeongsoon Park, Jong-Han Lim and Saul B Gelfand
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:345156
  40. Receivers for long-code systems are for computational reasons usually based on simple matched-filter techniques, and hence suffer from multiaccess interference. Decorrelating RAKE and MMSE receivers do not hav...

    Authors: Quang Hieu Dang and Alle-Jan van der Veen
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:327410
  41. While mobile hosts are evolving into full-IP enabled devices, there is a greater demand to provide a more flexible, reconfigurable, and scalable security mechanism in mobile communication systems beyond 3G (B3...

    Authors: Georgios Kambourakis, Angelos Rouskas and Stefanos Gritzalis
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:314541
  42. Wireless code-division multiple-access (CDMA) cellular downlink communications with transmit antenna arrays in multipath fading channels is studied. Various array signal processing techniques at the transmit e...

    Authors: Huaiyu Dai, Laurence Mailaender and HVincent Poor
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:219825
  43. An algorithm for designing spreading sequences for an overloaded multicellular synchronous DS-CDMA system on uplink is introduced. The criterion used to measure the optimality of the design is the total weight...

    Authors: Paul Cotae
    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:108689

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