Delay Performance Analysis and Evaluation of IEEE 802.11e EDCA in Finite Load Conditions
Wireless Personal Communications: An International Journal
Performance analysis of priority scheduling mechanisms under heterogeneous network traffic
Journal of Computer and System Sciences
A Wireless MAC Protocol with Collision Detection
IEEE Transactions on Mobile Computing
Video transmission over wireless networks: rate control for bursty throughput channels
MobiMedia '06 Proceedings of the 2nd international conference on Mobile multimedia communications
An improved medium access control scheme for multimedia wireless local area networks
Proceedings of the 3rd international conference on Mobile multimedia communications
A heuristic flow-decomposition approach for generalized processor sharing under self-similar traffic
Journal of Computer and System Sciences
Characterization of Service Times Burstiness of IEEE 802.11 DCF
WWIC '07 Proceedings of the 5th international conference on Wired/Wireless Internet Communications
IEEE/ACM Transactions on Networking (TON)
Performance Evaluation of a Dynamic Medium Access Control Scheme for Mobile Ad-Hoc Networks
Wireless Systems and Mobility in Next Generation Internet
Aggregation with fragment retransmission for very high-speed WLANs
IEEE/ACM Transactions on Networking (TON)
IPDPS'06 Proceedings of the 20th international conference on Parallel and distributed processing
Buffer sizing for 802.11-based networks
IEEE/ACM Transactions on Networking (TON)
On the shaping introduced by IEEE 802.11 nodes in long-range dependent traffic
Proceedings of the Third international EURO-NGI network of excellence conference on Wireless systems and mobility in next generation internet
Wireless Personal Communications: An International Journal
Performance analysis of IEEE 802.11e WLANs with hidden stations and heterogeneous traffic
ISPA'06 Proceedings of the 4th international conference on Parallel and Distributed Processing and Applications
Evaluation and estimation of second-order self-similar network traffic
Computer Communications
Survey: Performance models for wireless channels
Computer Science Review
Proceedings of the 15th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Analysis of medium access delay and packet overflow probability in IEEE 802.11 networks
NEW2AN'07 Proceedings of the 7th international conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking
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IEEE 802.11 medium access control (MAC) is gaining widespread popularity as a layer-2 protocol for wireless local-area networks. While efforts have been made previously to evaluate the performance of various protocols in wireless networks and to evaluate the capacity of wireless networks, very little is understood or known about the traffic characteristics of wireless networks. In this paper, we address this issue and first develop an analytic model to characterize the interarrival time distribution of traffic in wireless networks with fixed base stations or ad hoc networks using the 802.11 MAC. Our analytic model and supporting simulation results show that the 802.11 MAC can induce pacing in the traffic and the resulting interarrival times are best characterized by a multimodal distribution. This is a sharp departure from behavior in wired networks and can significantly alter the second order characteristics of the traffic, which forms the second part of our study. Through simulations, we show that while the traffic patterns at the individual sources are more consistent with long-range dependence and self-similarity, in contrast to wired networks, the aggregate traffic is not self-similar. The aggregate traffic is better classified as a multifractal process and we conjecture that the various peaks of the multimodal interarrival time distribution have a direct contribution to the differing scaling exponents at various timescales.