Corlayer: A transparent link correlation layer for energy efficient broadcast

Shuai Wang, Song Min Kim, Yunhuai Liu, Guang Tan, Tian He

Research output: Chapter in Book/Report/Conference proceedingConference contribution

37 Scopus citations

Abstract

Wireless communication essentially occurs in a broadcast medium with concurrent receptions. Recent works [34,41] have shown clear evidence that wireless links are not independent and that trans- missions from a transmitter to multiple receivers are correlated, a phenomenon that has profound implications for the performance of network protocols such as broadcast, multi-cast, opportunistic forwarding and network coding. In this paper, we show how link correlation can significantly impact broadcast. We present the de- sign and implementation of CorLayer, a general supporting layer for energy efficient reliable broadcast that carefully blacklists cer- Tain poorly correlated wireless links. This method uses only one- hop information, which makes it work in a fully distributed manner and introduces minimal communication overhead. The highlight of our work is CorLayer's broad applicability and effectiveness. Our system effort is indeed significant. We integrate CorLayer transpar- ently with sixteen state-of-the-art broadcast protocols specified in thirteen publications [1, 3, 18, 19, 23, 25-27, 32, 36, 38-40] on three physical testbeds running TelosB, MICAz, and GreenOrbs nodes, respectively. The experimental results show that CorLayer remark- Ably improves energy efficiency across a wide spectrum of broad- cast protocols and that the total number of packet transmissions can be reduced consistently by 47% on average.

Original languageEnglish (US)
Title of host publicationMobiCom 2013 - Proceedings of the 19th Annual International Conference on Mobile Computing and Networking
Pages51-62
Number of pages12
DOIs
StatePublished - Nov 11 2013
Event19th Annual International Conference on Mobile Computing and Networking, MobiCom 2013 - Miami, FL, United States
Duration: Sep 30 2013Oct 4 2013

Publication series

NameProceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM

Conference

Conference19th Annual International Conference on Mobile Computing and Networking, MobiCom 2013
CountryUnited States
CityMiami, FL
Period9/30/1310/4/13

Keywords

  • Energy efficiency
  • Ieee 802.15.4
  • Protocol
  • Wireless

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