CSMA self-adaptation based on interference differentiation

被引：0
|
作者：
Zhu, Jing [1 ]
Guo, Xingang [1 ]
Roy, Sumit [2 ]
Papagiannaki, Konstantina [3 ]
机构：
[1] Intel Corp, Commun Technol Lab, Hillsboro, OR 97124 USA
[2] Univ Washington, Seattle, WA 98195 USA
[3] Intel Res Pittsburgh, Pittsburgh, PA 15213 USA
来源：
GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-11 | 2007年
关键词：
CSMA; adaptation; CCA;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
this paper addresses the design challenge of interference mitigation in the emerging high density (HD) wireless LAN. It is proposed to differentiate interference according to their energy and timing relative to desired signal, and measure packet error rate (PER) locally at transmitter for each type of interference. Then, self-adaptation algorithms are designed to adjust a) clear channel assessment (CCA) threshold, aka physical carrier sensing threshold, to leverage spatial reuse for achieving higher aggregate throughput, and b) transmit power (TP) to compensate location difference among links, and prevent individual links from starving. Compared to an end-to-end (E2E) feedback loop, ours has negligible complexity and zero over-the-air overhead. Extensive OPNET simulations are used to compare the performance of our solutions against the legacy and the ideal.
引用
收藏
页码：4946 / +
页数：2
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