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Impact of training on the transmission capacity of wireless ad hoc networks

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3 Author(s)
Yueping Wu ; Dept. of Electron. & Comput. Eng., Hong Kong Univ. of Sci. & Technol., Hong Kong, China ; Louie, Raymond H.Y. ; McKay, M.R.

We investigate the impact of channel estimation (CE) on the performance of point-to-point transmission schemes in wireless ad hoc networks. We first derive a new closed-form expression for the outage probability when the minimum mean square error estimator is utilized for CE, and show that the training-pilot length should increase as a linear function of the network intensity to maintain a fixed CE quality. Next, we derive the optimal training-pilot length which maximizes the transmission capacity under interference-limited conditions, and show that this optimal length increases with the frame length according to a square-root law.

Published in:

Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on

Date of Conference:

25-30 March 2012

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