TY - GEN
T1 - Cooperation and directionality
T2 - IEEE International Conference on Communications, ICC 2008
AU - Tao, Zhifeng
AU - Korakis, Thanasis
AU - Liu, Feilu
AU - Panwar, Shivendra
AU - Zhang, Jinyun
AU - Tassiulas, Leandros
PY - 2008
Y1 - 2008
N2 - As the two key technologies that have the potential to reshape the landscape of next-generation wireless network, cooperative communications and directional antenna system so far have been developed in parallel, if not in isolation from each other. In order to establish a thorough comparison between the relative system performance of cooperative diversity and directional transmission in an adhoc environment, we design and quantitatively evaluate three medium access control protocols, namely O-CoopMAC, D-NoopMAC and D-CoopMAC. The study yields the unexpected yet crucial observation that cooperative forwarding significantly limits the spatial reuse created by transmission directionality, and therefore can appreciably degrade the performance of a directional system with a sufficiently narrow antenna beam. To the best knowledge of the authors, this is the first paper to systematically compare the performance of these two technologies in an adhoc environment and reveal the key fact that cooperation and directionality can be rather foes than friends!
AB - As the two key technologies that have the potential to reshape the landscape of next-generation wireless network, cooperative communications and directional antenna system so far have been developed in parallel, if not in isolation from each other. In order to establish a thorough comparison between the relative system performance of cooperative diversity and directional transmission in an adhoc environment, we design and quantitatively evaluate three medium access control protocols, namely O-CoopMAC, D-NoopMAC and D-CoopMAC. The study yields the unexpected yet crucial observation that cooperative forwarding significantly limits the spatial reuse created by transmission directionality, and therefore can appreciably degrade the performance of a directional system with a sufficiently narrow antenna beam. To the best knowledge of the authors, this is the first paper to systematically compare the performance of these two technologies in an adhoc environment and reveal the key fact that cooperation and directionality can be rather foes than friends!
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U2 - 10.1109/ICC.2008.830
DO - 10.1109/ICC.2008.830
M3 - Conference contribution
AN - SCOPUS:51249100678
SN - 9781424420742
T3 - IEEE International Conference on Communications
SP - 4424
EP - 4430
BT - ICC 2008 - IEEE International Conference on Communications, Proceedings
Y2 - 19 May 2008 through 23 May 2008
ER -