Open Access

Cross-Layer Admission Control Policy for CDMA Beamforming Systems

EURASIP Journal on Wireless Communications and Networking20072007:014562

DOI: 10.1155/2007/14562

Received: 31 October 2006

Accepted: 1 August 2007

Published: 31 October 2007


A novel admission control (AC) policy is proposed for the uplink of a cellular CDMA beamforming system. An approximated power control feasibility condition (PCFC), required by a cross-layer AC policy, is derived. This approximation, however, increases outage probability in the physical layer. A truncated automatic retransmission request (ARQ) scheme is then employed to mitigate the outage problem. In this paper, we investigate the joint design of an AC policy and an ARQ-based outage mitigation algorithm in a cross-layer context. This paper provides a framework for joint AC design among physical, data-link, and network layers. This enables multiple quality-of-service (QoS) requirements to be more flexibly used to optimize system performance. Numerical examples show that by appropriately choosing ARQ parameters, the proposed AC policy can achieve a significant performance gain in terms of reduced outage probability and increased system throughput, while simultaneously guaranteeing all the QoS requirements.


Authors’ Affiliations

Department of Electrical and Computer Engineering, Queen's University


  1. Andersin M, Rosberg Z, Zander J: Soft and safe admission control in power-controlled mobile systems. IEEE/ACM Transactions on Networking 1997,5(2):255-265. 10.1109/90.588096View ArticleGoogle Scholar
  2. Bao Y, Sethi AS: Performance-driven adaptive admission control for multimedia applications. Proceedings of IEEE International Conference on Communications (ICC '99), June 1999, Vancouver, BC, Canada 1: 199-203.Google Scholar
  3. Liu T-K, Silvester J: Joint admission/congestion control for wireless CDMA systems supporting integrated services. IEEE Journal on Selected Areas in Communications 1998,16(6):845-857. 10.1109/49.709448View ArticleGoogle Scholar
  4. Comaniciu C, Poor HV: Jointly optimal power and admission control for delay sensitive traffic in CDMA networks with LMMSE receivers. IEEE Transactions on Signal Processing 2003,51(8):2031-2042. 10.1109/TSP.2003.814467MathSciNetView ArticleGoogle Scholar
  5. Singh S, Krishnamurthy V, Poor HV: Integrated voice/data call admission control for wireless DS-CDMA systems. IEEE Transactions on Signal Processing 2002,50(6):1483-1495. 10.1109/TSP.2002.1003071MathSciNetView ArticleGoogle Scholar
  6. Yu F, Krishnamurthy V, Leung VCM: Cross-layer optimal connection admission control for variable bit rate multimedia traffic in packet wireless CDMA networks. IEEE Transactions on Signal Processing 2006,54(2):542-555.View ArticleGoogle Scholar
  7. Telatar IE: Capacity of multi-antenna Gaussian channels. European Transactions on Telecommunications 1999,10(6):585-595. 10.1002/ett.4460100604View ArticleGoogle Scholar
  8. Yener A, Yates RD, Ulukus S: Combined multiuser detection and beamforming for CDMA systems: filter structures. IEEE Transactions on Vehicular Technology 2002,51(5):1087-1095. 10.1109/TVT.2002.800616View ArticleGoogle Scholar
  9. Alamouti SM: A simple transmit diversity technique for wireless communications. IEEE Journal on Selected Areas in Communications 1998,16(8):1451-1458. 10.1109/49.730453View ArticleGoogle Scholar
  10. Hassibi B, Hochwald BM: High-rate codes that are linear in space and time. IEEE Transactions on Information Theory 2002,48(7):1804-1824. 10.1109/TIT.2002.1013127MathSciNetView ArticleMATHGoogle Scholar
  11. Tarokh V, Seshadri N, Calderbank AR: Space-time codes for high data rate wireless communication: performance criterion and code construction. IEEE Transactions on Information Theory 1998,44(2):744-765. 10.1109/18.661517MathSciNetView ArticleMATHGoogle Scholar
  12. Foschini GJ: Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas. Bell Labs Technical Journal 1996,1(2):41-59.View ArticleGoogle Scholar
  13. Blostein SD, Leib H: Multiple antenna systems: their role and impact in future wireless access. IEEE Communications Magazine 2003,41(7):94-101. 10.1109/MCOM.2003.1215645View ArticleGoogle Scholar
  14. Rashid-Farrokhi F, Tassiulas L, Liu KJR: Joint optimal power control and beamforming in wireless networksusing antenna arrays. IEEE Transactions on Communications 1998,46(10):1313-1324. 10.1109/26.725309View ArticleGoogle Scholar
  15. Song G, Gong K: Performance comparison of optimum beamforming and spatially matched filter in power-controlled CDMA systems. Proceedings of IEEE International Conference on Communications (ICC '02), April-May 2002, New York, NY, USA 1: 455-459.View ArticleGoogle Scholar
  16. Wyglinski AM, Blostein SD: On uplink CDMA cell capacity: mutual coupling and scattering effects on beamforming. IEEE Transactions on Vehicular Technology 2003,52(2):289-304.Google Scholar
  17. Pedersen KI, Mogensen PE: Directional power-based admission control for WCDMA systems using beamforming antenna array systems. IEEE Transactions on Vehicular Technology 2002,51(6):1294-1303. 10.1109/TVT.2002.804855View ArticleGoogle Scholar
  18. Evans J, Tse DNC: Large system performance of linear multiuser receivers in multipath fading channels. IEEE Transactions on Information Theory 2000,46(6):2059-2078. 10.1109/18.868478MathSciNetView ArticleMATHGoogle Scholar
  19. Brueck S, Jugl E, Kettschau H-J, Link M, Mueckenheim J, Zaporozhets A: Radio resource management in HSDPA and HSUPA. Bell Labs Technical Journal 2007,11(4):151-167. 10.1002/bltj.20201View ArticleGoogle Scholar
  20. Liu Q, Zhou S, Giannakis GB: Cross-layer combining of adaptive modulation and coding with truncated ARQ over wireless links. IEEE Transactions on Wireless Communications 2004,3(5):1746-1755. 10.1109/TWC.2004.833474View ArticleGoogle Scholar
  21. Sampath A, Kumar PS, Holtzman JM: Power control and resource management for a multimedia CDMA wireless system. Proceedings of the 6th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC '95), September 1995, Toronto, Canada 1: 21-25.View ArticleGoogle Scholar
  22. Wyglinski A: Performance of CDMA systems using digital beamforming with mutual coupling and scattering effects, M.S. thesis. Queen's University, Kingston, Ontario, Canada; 2000.Google Scholar
  23. Tijms HC: Stochastic Modelling and Analysis: A Computational Approach. John Wiley & Sons, Chichester, UK; 1986.Google Scholar


© W. Sheng and S. D. Blostein. 2007

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.