A new cooperative diversity algorithm with quality of service (QoS) awareness for wireless local areanetwork (WEAN) is proposed.According to this protocol,cooperation is invoked only if a direct trans-mission cannot meet user-specific QoS requirements.If cooperation is implemented,partner choice de-pends 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 analysisand simulation results indicate that the QoS-aware cooperative scheme can significantly improve the systemperformance in terms of throughput and energy efficiency by avoiding negative effect of unconditional co-operation.
展开▼
