Title :
Multi-hop MAC implementations for affordable SDR hardware
Author :
O´Sullivan, J. Colman ; Francesco, Paolo Di ; Anyanwu, Uchenna K. ; DaSilva, Luiz A. ; Mackenzie, Allen B.
Author_Institution :
Telecommun. Res. Centre, Univ. of Dublin, Dublin, Ireland
Abstract :
This paper presents the implementation and experimental evaluation of a MAC protocol designed to overcome some of the limitations of affordable and widely-deployed software defined radio hardware. We propose a modified Aloha-based MAC protocol with implicit acknowledgements to mitigate the impact of intra-flow collisions in multi-hop wireless communications. We experimentally observe a significant improvement in throughput and delay through simple modifications to the MAC protocol, tailoring it to the timing constraints of the USRP1.
Keywords :
access protocols; software radio; Aloha-based MAC protocol; SDR hardware; intraflow collision; multihop wireless communication; widely-deployed software defined radio hardware; Delay; Demodulation; Hardware; Media Access Protocol; Relays; Throughput;
Conference_Titel :
New Frontiers in Dynamic Spectrum Access Networks (DySPAN), 2011 IEEE Symposium on
Conference_Location :
Aachen
Print_ISBN :
978-1-4577-0177-1
Electronic_ISBN :
978-1-4577-0176-4
DOI :
10.1109/DYSPAN.2011.5936259
