Mobility

Optimal One Bit Time Reversal for UWB Impulse Radio in Multi-User Wireless Communications

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Executive Summary

In this paper, with the purpose of further reducing the complexity of the system, while keeping its temporal and spatial focusing performance, the authors investigate the possibility of using optimal one bit Time Reversal (TR) system for impulse radio ultra wideband multi-user wireless communications. The results show that, by optimally selecting the number of used taps in the pre-filter the optimal one bit TR system can outperform the full one bit TR system. In some cases, the temporal and spatial focusing performance of the optimal one bit TR system appears to be compatible with that of the original TR system. This is a significant result as the overhead cost is much lower than it is required in the original TR system.

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