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Cross-layer call admission control in packet CDMA wireless networks employing ARQ

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2 Author(s)
Sheng, Wei ; Dept. of Electr. & Comput. Eng., Queen''s Univ., Kingston, ON ; Blostein, S.D.

An optimal call/connection admission control (CAC) policy is proposed for a packet-switched code division multiple access (CDMA) beamforming system, which employs a truncated automatic retransmission request (ARQ) scheme to mitigate the packet transmission error. Compared with the previous research in which call level QoS is ignored, the proposed CAC policy is capable of guaranteeing quality-of-service (QoS) requirements in physical, call and packet levels, while simultaneously maximizing the system throughput. Numerical examples illustrate that the proposed CAC policy offers a more flexible tradeoff among physical-layer, packet-level and call level performances, and as a result, the multiple QoS constraints can be handled.

Published in:

Communications, 2008 24th Biennial Symposium on

Date of Conference:

24-26 June 2008