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首页> 外文会议>Information Sciences and Systems, 2009. CISS 2009 >Integrating retransmission diversity with real-time scheduling over wireless links
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Integrating retransmission diversity with real-time scheduling over wireless links

机译：通过无线链路将重传分集与实时调度相集成

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摘要

In this paper, cross-layer combining of an adaptive modulation-coding (AMC) scheme at the physical layer and the use of automatic repeat request (ARQ) retransmissions at the medium access control (MAC) layer is integrated into the design of scheduling for multi-user wireless networks. A class of scheduling algorithms capable of jointly collecting retransmission diversity and multi-user diversity are developed for delay sensitive real-time network traffic. Numerical computer simulations are provided to examine the merits of our novel schemes for multiple real-time transmissions over Nakagami block fading channels. Analytical and simulation results show that the proposed scheduling schemes can asymptotically guarantee the prescribed fairness and average delay requirements for real-time traffic, even when the underlying fading channel distribution is unknown a priori.
机译：本文将物理层的自适应调制编码（AMC）方案的跨层组合与介质访问控制（MAC）层的自动重发请求（ARQ）重传的使用集成到了调度的设计中。多用户无线网络。针对延迟敏感的实时网络流量，开发了一种能够联合收集重传分集和多用户分集的调度算法。提供了数值计算机仿真，以检验我们的新型方案在中上块衰落信道上进行多次实时传输的优点。分析和仿真结果表明，即使潜在的衰落信道先验未知，所提出的调度方案也可以渐近保证实时流量的规定公平性和平均延迟要求。

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