NDLI: TCP Performance Dynamics and Link-Layer Adaptation Based Optimization Methods for Wireless Networks

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Design of a Channel-Aware OFDM Transceiver

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Efficient High-Performance Decoding for Overloaded MIMO Antenna Systems

Core Capacity Region of Energy-Limited, Delay-Tolerant Wireless Networks

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TCP Performance Dynamics and Link-Layer Adaptation Based Optimization Methods for Wireless Networks

Capacity Maximization for Zero-Forcing MIMO-OFDMA Downlink Systems with Multiuser Diversity

Efficient Blind Receiver Design for Orthogonal Space-Time Block Codes

An Optimized-Hierarchy-Aided Approximate Log-MAP Detector for MIMO Systems

Linear Interpolation in Pilot Symbol Assisted Channel Estimation for OFDM

Analysis, Optimization, and Implementation of Low-Interference Wireless Multicarrier Systems

Performance Analysis of the WLAN-First Scheme in Cellular/WLAN Interworking

Spectrum Shaping and NBI Suppression in UWB Communications

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TCP Performance Dynamics and Link-Layer Adaptation Based Optimization Methods for Wireless Networks

Content Provider	IEEE Xplore Digital Library
Author	Singh, J.P. Li, V. Bambos, N. Bahai, A. Xu, B. Zimmermann, G.
Copyright Year	2002
Abstract	Almost a decade long research on the performance of TCP in wireless networks has resulted in many proposals and solutions to the problem of TCP throughput degradation. Several of these measures, however, have their share of drawbacks. With the continuing emergence of wireless technologies ever since the work on TCP performance over wireless began, smart link-layer mechanisms like adaptive modulation and coding, power control, and incremental redundancy have been designed and deployed. In this work, we outline a cross-layer optimization framework based on the congestion control dynamics of a bulk-transfer TCP flow and demonstrate its application to networks which offer link-layer adaptive measures. We begin by observing that the TCP's congestion window dynamics are comprised of certain recurring patterns which we term as cycles. We then overlay a TCP throughput optimization methodology that selects link-layer transmission modes (e.g. modulation scheme, coding rate, transmission power, or a combination thereof) in accordance with TCP dynamics and wireless channel conditions. We provide insights into the working of the optimization procedure which protects TCP segments against losses on the wireless channel when the TCP congestion window size (in bytes) is below the bandwidth-delay product of the network. The protection against wireless channel losses is rendered by the link-layer by employing robust modulation and coding schemes, high transmission power, etc. We show that TCP dynamics aware link adaptation measures lead to substantial enhancement of TCP throughput in EGPRS and IEEE 802.11a networks
File Size	450614
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	Optimization methods Wireless networks Throughput Modulation coding Programmable control Adaptive control Protection Proposals Degradation Power control
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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