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  1. 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

    Content type: Research Article

    Published on:

  2. 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

    Content type: Research Article

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  3. 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

    Content type: Research Article

    Published on:

  4. Authors: Jitendra K Tugnait, Hui Liu, Guang Gong and Tongtong Li

    Citation: EURASIP Journal on Wireless Communications and Networking 2004 2004:720484

    Content type: Research Article

    Published on:

  5. 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

    Content type: Research Article

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  6. 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

    Content type: Research Article

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  7. 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

    Content type: Research Article

    Published on:

  8. 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

    Content type: Research Article

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  9. 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

    Content type: Research Article

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  10. 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

    Content type: Research Article

    Published on:

  11. 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

    Content type: Research Article

    Published on:

  12. 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

    Content type: Research Article

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  13. 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

    Content type: Research Article

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  14. 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

    Content type: Research Article

    Published on:

  15. 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

    Content type: Research Article

    Published on:

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