Space-time coding for wireless sensor networks with cooperative routing diversity

Lichuan Liu, Hongya Ge

Research output: Contribution to journalConference article

9 Scopus citations

Abstract

In this work, the idea of cross-layer design for wireless sensor networks is exploited to improve the network performance. We present a new energy efficient cooperative routing scheme with space diversity using space-time block codes (STBCs) as well as the link quality. In our solution, the selected multiple nodes act as multiple transmitting and receiving antennas. Full diversity from the orthogonal STBC is utilized to overcome multipath fading and to enhance power efficiency. The steady state network performance measures, such as, network throughput and delay are analyzed via Markov chain modelling. Compared with the traditional single relay routing method and the single receiving diversity routing method, our proposed method outperforms the other two in low SNR environments and provides higher throughput and similar delay in high SNR environments.

Original languageEnglish (US)
Pages (from-to)1271-1274
Number of pages4
JournalConference Record - Asilomar Conference on Signals, Systems and Computers
Volume1
StatePublished - Dec 1 2004
EventConference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States
Duration: Nov 7 2004Nov 10 2004

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Networks and Communications

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