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

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.

[1]  J. Cardoso,et al.  Blind beamforming for non-gaussian signals , 1993 .

[2]  David Tse,et al.  Fundamentals of Wireless Communication , 2005 .

[3]  Michail K. Tsatsanis,et al.  Network-assisted diversity multiple access in dispersive channels , 2002, IEEE Trans. Commun..

[4]  Dina Katabi,et al.  Zigzag decoding: combating hidden terminals in wireless networks , 2008, SIGCOMM '08.

[5]  Athina P. Petropulu,et al.  Collision resolution based on pulse shape diversity , 2009, 2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications.

[6]  A.P. Petropulu,et al.  A new wireless network medium access protocol based on cooperation , 2005, IEEE Transactions on Signal Processing.

[7]  Xin Liu,et al.  ALOHA with Collision Resolution: MAC layer analysis and software defined radio implementation , 2010, 2010 44th Annual Conference on Information Sciences and Systems (CISS).

[8]  Joseph R. Cavallaro,et al.  WARP, a Unified Wireless Network Testbed for Education and Research , 2007, 2007 IEEE International Conference on Microelectronic Systems Education (MSE'07).

[9]  Xin Liu,et al.  ALOHA With Collision Resolution (ALOHA-CR): Theory and Software Defined Radio Implementation , 2010, IEEE Transactions on Signal Processing.

[10]  Athina P. Petropulu,et al.  A Novel Location Relay Selection Scheme for ALLIANCES , 2008, IEEE Transactions on Vehicular Technology.