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Summary: Combining Space-Time Coding with
Power-Efficient Medium Access Control for Mobile
Ad-Hoc Networks
Ramy F. Farha
Department of Electrical and Computer Engineering
University of Toronto
Toronto, Ontario, Canada
Email: rfarha@comm.utoronto.ca
Raviraj S. Adve
Department of Electrical and Computer Engineering
University of Toronto
Toronto, Ontario, Canada
Email: rsadve@comm.utoronto.ca
Abstract-- This paper investigates the impact of space-time
coding on a power-efficient Medium Access Control (MAC)
protocol in an IEEE 802.11a-based mobile ad hoc network
(MANET). The new MAC protocol preserves energy by sending
information at the minimal power required to reach the des-
tination at the minimum power with a specified Packet Error
Rate (PER). The analysis of space-time coding is conducted in
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