DANUM System for Single-hop Wireless Mesh Networks
In this paper, we present a Delay-Aware Network Utility Maximization (DANUM) system aimed at serving users of a single-hop wireless mesh network. The basis of the DANUM model is the application of a new optimization variable that enables the comparativeness of utility definitions for TCP and UDP flows. As a result, the DANUM system is able to apply the NUM-derived priorities to delay-sensitive streaming media flows and delay-insensitive filetransfer flows. Moreover, the soft admission ability is enabled, allowing to serve at least some of the flows despite network congestion. The proposed implementation is based on a Linux kernel module which is responsible for indirect delay-aware flow control and an approximation of the Max-Weight Scheduling policy - both performed above the MAC layer. To the authors knowledge, the proposed solution is the first delay-aware NUM system, interoperable with widely-used protocols of the wireless networking stack, such as TCP, UDP, IP, and 802.11 MAC. The functional value of the system has been confirmed experimentally in the physical testbed emulating a network used in a home single-hop multi-service scenario.
wireless mesh networks backpressure max-weight scheduling delay-aware NUM
Andrzej Szwabe Pawel Misiorek Przemyslaw Walkowiak
Institute of Control and Information Engineering Poznan University of Technology Poznan, Poland
国际会议
2010 International Conference on Future Information Technology(2010年未来信息技术国际会议 ICFIT 2010)
长沙
英文
365-369
2010-12-14（万方平台首次上网日期，不代表论文的发表时间）