کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
444487 | 692987 | 2014 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deflating link buffers in a wireless mesh network
ترجمه فارسی عنوان
تعویض بافرهای لینک در یک شبکه مشبک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی
We analyze the problem of buffer sizing for backlogged TCP flows in 802.11-based wireless mesh networks. Our objective is to maintain high network utilization while providing low queueing delays. Unlike wired networks where a single link buffer feeds a bottleneck link, the radio spectral resource in a mesh network is shared among a set of contending mesh routers. We account for this by formulating the buffer size problem as sizing a collective buffer distributed over a set of interfering nodes. In this paper we propose mechanisms for sizing and distributing this collective buffer among the mesh nodes constituting the network bottleneck. Our mechanism factors in the network topology and wireless link rates, improving on pre-set buffer allocations that cannot optimally work across the range of configurations achievable with 802.11 radios. We evaluate our mechanisms using simulations as well as experiments on a testbed. Our results show that we can reduce the RTT of a flow by 6Ã or more, at the cost of less than 10% drop in end-to-end flow throughput.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ad Hoc Networks - Volume 16, May 2014, Pages 266-280
Journal: Ad Hoc Networks - Volume 16, May 2014, Pages 266-280
نویسندگان
Kamran Jamshaid, Basem Shihada, Ahmad Showail, Philip Levis,