Cross-Layer Admission Control Policy for CDMA Beamforming Systems

<p/> <p>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 ph...

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Main Authors: Sheng Wei, Blostein Steven D
Format: Article
Language:English
Published: SpringerOpen 2007-01-01
Series:EURASIP Journal on Wireless Communications and Networking
Online Access:http://jwcn.eurasipjournals.com/content/2007/014562
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author Sheng Wei
Blostein Steven D
author_facet Sheng Wei
Blostein Steven D
author_sort Sheng Wei
collection DOAJ
description <p/> <p>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.</p>
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spelling doaj.art-4858ec3164f744638c2a5e5da00644902022-12-21T21:17:41ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992007-01-0120071014562Cross-Layer Admission Control Policy for CDMA Beamforming SystemsSheng WeiBlostein Steven D<p/> <p>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.</p>http://jwcn.eurasipjournals.com/content/2007/014562
spellingShingle Sheng Wei
Blostein Steven D
Cross-Layer Admission Control Policy for CDMA Beamforming Systems
EURASIP Journal on Wireless Communications and Networking
title Cross-Layer Admission Control Policy for CDMA Beamforming Systems
title_full Cross-Layer Admission Control Policy for CDMA Beamforming Systems
title_fullStr Cross-Layer Admission Control Policy for CDMA Beamforming Systems
title_full_unstemmed Cross-Layer Admission Control Policy for CDMA Beamforming Systems
title_short Cross-Layer Admission Control Policy for CDMA Beamforming Systems
title_sort cross layer admission control policy for cdma beamforming systems
url http://jwcn.eurasipjournals.com/content/2007/014562
work_keys_str_mv AT shengwei crosslayeradmissioncontrolpolicyforcdmabeamformingsystems
AT blosteinstevend crosslayeradmissioncontrolpolicyforcdmabeamformingsystems