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Cross-Layer Admission Control Policy for CDMA Beamforming Systems

Abstract

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.

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Correspondence to Wei Sheng.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Sheng, W., Blostein, S.D. Cross-Layer Admission Control Policy for CDMA Beamforming Systems. J Wireless Com Network 2007, 014562 (2007). https://doi.org/10.1155/2007/14562

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  • DOI: https://doi.org/10.1155/2007/14562

Keywords

  • Control Policy
  • Outage Probability
  • Physical Layer
  • Admission Control
  • Performance Gain