Cooperative Diversity Routing and Transmission for Wireless Sensor Networks

Published

April 12, 2013

Author(s)

Hamid Gharavi

Abstract

In this paper, we present a novel design framework aimed at developing ’cooperative diversity’ in 802.11-based wireless sensor networks. The proposed scheme is a combination of a time-reversed Space-Time Block Code (TR STBC) scheme at the physical layer and a cooperative routing protocol at the network layer. The core feature of this architecture is that the multiple routes are capable of assisting the transmission of each other, hence the reliability of all the wireless links are enhanced simultaneously by cooperative diversity. This will involve the design of physical layer transmission schemes, medium access protocols and routing strategies. For the latter in particular, we present a cooperative routing protocol that is capable of exploiting full transmit diversity in wireless sensor networks. We restrict ourselves by imposing as few modifications to existing schemes as possible, so that integration to the existing infrastructure will be straightforward. Comprehensive simulations have been carried out to demonstrate the end-to-end performance of the proposed scheme. It is shown that a substantial gain can be achieved by cooperative diversity using a virtual MIMO system architecture.

Citation

IET Wireless Sensor Systems

Pub Type

Journals

Download Paper

Local Download

Keywords

Wireless sensor networks, cooperative diversity, cooperative routing, MIMO systems, STBC, IEEE 802.11

Citation

Gharavi, H. (2013), Cooperative Diversity Routing and Transmission for Wireless Sensor Networks, IET Wireless Sensor Systems, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=913802 (Accessed September 8, 2024)