NDLI: Improving Transport Layer Performance in Multihop Ad Hoc Networks by Exploiting MAC Layer Information

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Mutual-Information-Based Adaptive Bit-Loading Algorithms for LDPC-Coded OFDM

System-Level Analysis of Closed-Loop Power Control in the Uplink of DS-CDMA Cellular Networks

Improving Transport Layer Performance in Multihop Ad Hoc Networks by Exploiting MAC Layer Information

MAC Access Delay of IEEE 802.11 DCF

A Leakage-Based Precoding Scheme for Downlink Multi-User MIMO Channels

Effects of Spatial Correlation on MIMO Adaptive Antenna System With Optimum Combining

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Improving Transport Layer Performance in Multihop Ad Hoc Networks by Exploiting MAC Layer Information

Content Provider	IEEE Xplore Digital Library
Author	Zhai, H. Chen, X. Fang, Y.
Copyright Year	2002
Abstract	The traditional TCP congestion control mechanism encounters a number of new problems and suffers a poor performance when the IEEE 802.11 MAC protocol is used in multihop ad hoc networks. Many of the problems result from medium contention at the MAC layer. In this paper, we first illustrate that severe medium contention and congestion are intimately coupled, and TCP's congestion control algorithm becomes too coarse in its granularity, causing throughput instability and excessively long delay. Further, we illustrate TCP's severe unfairness problem due to the medium contention and the tradeoff between aggregate throughput and fairness. Then, based on the novel use of channel busyness ratio, a more accurate metric to characterize the network utilization and congestion status, we propose a new wireless congestion control protocol (WCCP) to efficiently and fairly support the transport service in multihop ad hoc networks. In this protocol, each forwarding node along a traffic flow exercises the inter-node and intra-node fair resource allocation and determines the MAC layer feedback accordingly. The end-to-end feedback, which is ultimately determined by the bottleneck node along the flow, is carried back to the source to control its sending rate. Extensive simulations show that WCCP significantly outperforms traditional TCP in terms of channel utilization, delay, and fairness, and eliminates the starvation problem
File Size	359351
File Format	PDF
ISSN	15361276
Volume Number	6
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spread spectrum communication Ad hoc networks Media Access Protocol Throughput Delay Feedback Aggregates Transport protocols Wireless application protocol Communication system traffic control
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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