A novel QoS supported cooperative diversity algorithm for IEEE 802.11 WLAN |
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| Authors: | Li Yi Ji Hong |
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| Affiliation: | Key Laboratory of Universal Wireless Communications,Ministry of Education,Beijing University of Posts and Telecommunications,Beijing 100876,P.R.China |
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| Abstract: | A new cooperative diversity algorithm with quality of service (QoS) awareness for wireless local area network (WLAN) is proposed. According to this protocol, cooperation is invoked only if a direct transmission cannot meet user-specific QoS requirements. If cooperation is implemented, partner choice depends on who can achieve the minimum data rate required to have a successful transmission. The closed-form expressions for the system throughput and the power consumption are provided. Theoretical analysis and simulation results indicate that the QoS-aware cooperative scheme can significantly improve the system performance in terms of throughput and energy efficiency by avoiding negative effect of unconditional cooperation. |
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| Keywords: | cooperative communications quality of service (QoS) throughput energy efficiency wireless local area network (WLAN) |
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