Evaluation of packet latency and fluctuation during UDP packet exchange in ad hoc wireless groups

We study latency fluctuation during UDP packet exchange in ad hoc wireless groups. We focus on wireless media access using carrier sensing multiple access with collision avoidance, specifically the 802.11 protocol. We show that there can be large intermittent fluctuations in transmission times when packet exchange is done using UDP unicast. We show how the conditions for the onset of large fluctuations can be estimated, and how these estimates can be used in the design of applications which require real-time data exchanges with low latency.

[1]  Hari Balakrishnan,et al.  An analysis of short-term fairness in wireless media access protocols (poster session) , 2000, SIGMETRICS '00.

[2]  Kwang-Cheng Chen,et al.  Performance analysis of IEEE 802.11 CSMA/CA medium access control protocol , 1996, Proceedings of PIMRC '96 - 7th International Symposium on Personal, Indoor, and Mobile Communications.

[3]  Joe F. Chicharo,et al.  Unfairness and capture behaviour in 802.11 adhoc networks , 2000, 2000 IEEE International Conference on Communications. ICC 2000. Global Convergence Through Communications. Conference Record.

[4]  G. Bianchi,et al.  IEEE 802.11-saturation throughput analysis , 1998, IEEE Communications Letters.

[5]  Kazushi Nishimoto,et al.  A wireless, networked musical environment consisting of wearable MIDI instruments , 2003, 10th International Conference on Telecommunications, 2003. ICT 2003..

[6]  John Wawrzynek,et al.  A case for network musical performance , 2001, NOSSDAV '01.

[7]  Theodore Antonakopoulos,et al.  CSMA/CA performance under high traffic conditions: throughput and delay analysis , 2002, Comput. Commun..

[8]  Leonard Kleinrock,et al.  Throughput Analysis for Persistent CSMA Systems , 1985, IEEE Trans. Commun..

[9]  A. Girotra,et al.  Performance Analysis of the IEEE 802 . 11 Distributed Coordination Function , 2005 .