Cross Layer Power Allocation For Selection Relaying and Incremental Relaying Protocols Over Single Relay Networks
Cross Layer Power Allocation For Selection Relaying and Incremental Relaying Protocols Over Single Relay Networks
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DOI：
10.1109/twc.2016.2542814
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发表时间：
2016-03
影响因子：
10.4
通讯作者：
Sara Efazati;P. Azmi
中科院分区：
文献类型：
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作者：
Sara Efazati;P. Azmi
本文的目的是分析和改进单中继网络中自适应选择中继协议（SRP）和自适应增量中继协议（IRP）的延迟服务质量（QoS）提供。关于延迟QoS供应，利用有效容量（EC）的概念。因此，作为第一步，我们找到了SRP和IRP的EC函数，并对EC进行了数学分析，导出了它们的封闭形式表达式，从而降低了计算复杂度。然后，通过最大化EC或等效地改善延迟QoS提供的目标，我们提出了跨层自适应功率分配（阿帕）计划作为两个封闭形式的算法SRP和IRP策略。所提出的跨层阿帕算法依赖于延迟QoS约束和瞬时信道条件。此外，通过应用封闭形式的EC，两个跨层的固定功率分配（FPA）计划表示在SRP和IRP依赖于延迟QoS约束和统计信道条件。数值结果验证了所导出的封闭形式方程的EC的协议，也表明，我们提出的阿帕计划实现了显着改善EC性能的系统与两个协议，特别是严格的QoS要求。
The purpose of this paper is analyzing and improving delay quality of service (QoS) provisioning of adaptive selection relaying protocol (SRP) and adaptive incremental relaying protocol (IRP) in single relay networks. In relation to delay QoS provisioning, the concept of effective capacity (EC) is utilized. So, as the first step, we find the EC functions of SRP and IRP and mathematically analyze the ECs to derive the closed form expressions of them which reduce the computational complexity. Then, by the goal of maximizing the ECs or equivalently improving delay QoS provisioning, we propose cross layer adaptive power allocation (APA) schemes as two closed form algorithms for both SRP and IRP strategies. The proposed cross layer APA algorithms depend on the delay QoS constraint and instantaneous channel conditions. Also, by applying the closed form ECs, two cross layer fixed power allocation (FPA) schemes are represented over both SRP and IRP that depend on delay QoS constraint and statistical channel conditions. The numerical results validate the derived closed form equations for the ECs of the protocols and also show that our proposed APA schemes achieve a significant improvement in EC performance of the system with both protocols, especially for stringent QoS requirements.