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ALOHA with Collision Resolution: Physical layer description and software defined radio implementation
Conference proceeding

ALOHA with Collision Resolution: Physical layer description and software defined radio implementation

Xin Xin Liu, J Kountouriotis, A P Petropulu and K R Dandekar
2010 IEEE International Conference on Acoustics, Speech and Signal Processing, pp 3330-3333
Mar 2010

Abstract

Software testing System testing multi-user system Physical layer Throughput software defined radio Delay MIMO systems Wireless networks Diversity reception Bandwidth Frequency diversity blind source separation collision resolution Software radio
A cross-layer scheme, namely ALOHA with Collision Resolution (ALOHA-CR), is proposed for high throughput wireless communications in a cellular scenario. Transmissions occur in a time-slotted ALOHA-type fashion but with an important difference: simultaneous transmissions of two users can be successful. The physical layer required to achieve this functionality is described and the statistical properties of the user delays are determined so that the probability of user separation is maximized. An implementation of ALOHA-CR on the Wireless Open Access Research Platform (WARP) testbed containing software defined radio nodes is discussed and experimental results are presented.

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Web of Science research areas
Acoustics
Computer Science, Theory & Methods
Engineering, Electrical & Electronic
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