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Issues and Improvements in TCP Performance over Multihop Wireless Networks

Beizhong Chen, Ivan Marsic, Ray Miller
2008 2008 IEEE Sarnoff Symposium  
TCP performance in contention-based multi-hop wireless networks is shaped by two main factors, which are unlike the wired network case.  ...  Motivated by this understanding, we reformulate and enhance an existing idea for improving TCP performance by further lowering the number of control packets.  ...  [3] use the number of hops to determine the optimal cwnd window. Altman et al. [1] found that using different delay-ACK strategies results in TCP performance gains. Yuki et al.  ... 
doi:10.1109/sarnof.2008.4520055 fatcat:6a73wayun5dxxeyazmrpprs2jy

Optimization of iSCSI Remote Storage Access through Multiple Layers

Reika Higa, Kosuke Matsubara, Takao Okamawari, Saneyasu Yamaguchi, Masato Oguchi
2009 2009 International Conference on Advanced Information Networking and Applications Workshops  
As a result, when RTT is 32ms, performance of the optimized iSCSI has achieved quadruple of that of the default iSCSI.  ...  iSCSI has a problem of drastic performance deterioration in the case of longer-latency. Thus, we have optimized iSCSI remote storage access through multiple layers.  ...  The suspend and restart of iSCSI access are controlled in the TCP layer because only TCP ACKs are received before the restart.  ... 
doi:10.1109/waina.2009.61 dblp:conf/aina/HigaMOYO09 fatcat:mxarsyzgirabpgi6etoecs7egy

TCP with delayed ack for wireless networks

Jiwei Chen, Mario Gerla, Yeng Zhong Lee, M.Y. Sanadidi
2008 Ad hoc networks  
In fact, for a given topology and flow pattern, there exists an optimal delay window size at the receiver that produces best TCP throughput.  ...  These schemes significantly improve TCP performance in both multihop ad hoc wireless and hybrid wired/wireless networks.  ...  to avoid high packet loss and achieve optimal TCP performance.  ... 
doi:10.1016/j.adhoc.2007.10.004 fatcat:lf6fno3eezh3lilbuenq4cj2oa

TCP with Delayed Ack for Wireless Networks

Jiwei Chen, Yeng Zhong Lee, Mario Gerla, M.Y. Sanadidi
2006 2006 3rd International Conference on Broadband Communications, Networks and Systems  
In fact, for a given topology and flow pattern, there exists an optimal delay window size at the receiver that produces best TCP throughput.  ...  These schemes significantly improve TCP performance in both multihop ad hoc wireless and hybrid wired/wireless networks.  ...  to avoid high packet loss and achieve optimal TCP performance.  ... 
doi:10.1109/broadnets.2006.4374405 dblp:conf/broadnets/ChenLGS06 fatcat:ig5sdhdmdnhjhajhxkdvmw523q

Improving TCP handoff performance in Mobile IP based networks

Doo Seop Eom, HeyungSub Lee, Masashi Sugano, Masayuki Murata, Hideo Miyahara
2002 Computer Communications  
In this paper, we show that in most cases the smooth handoff by the route optimization of the Mobile IP standard cannot prevent degradation of TCP performance in events of handoffs, although it was originally  ...  We also show that in utilizing the route optimization extension, the TCP performance sometimes becomes worse even than the case of the base Mobile IP, if its smooth handoff fails to avoid losses of four  ...  That is the reason why the performance of TCP is further degraded when the route optimization extension is used.  ... 
doi:10.1016/s0140-3664(01)00394-2 fatcat:ug7ytqvgy5h7vlhzg54zvrn7ne

Optimizing TCP Loss Recovery Performance Over Mobile Data Networks [article]

Ke Liu, Zhongbin Zha, Wenkai Wan, Vaneet Aggarwal, Binzhang Fu, Mingyu Chen
2018 arXiv   pre-print
receiving window is exhausted.  ...  Using emulated experiments we showed that, compared to the existing TCP loss recovery algorithms, the proposed optimization algorithms improve the bandwidth efficiency by up to 133% and completely mitigate  ...  As shown in Table 14 (Optimized (w/ Hack 1)), the optimized QARR/BARR with Hack 1 always perform better than the original ones -a direct result of the TCP timeout elimination, while the performance gap  ... 
arXiv:1801.02534v1 fatcat:jva6nv6egbaihl4rizgd3fh6xm

Performance Analysis of TCP over UMTS Network

Sammer Zai, Sana Hoor Jokhio, Imran Ali Jokhio
2013 Mehran University Research Journal of Engineering and Technology  
have been designed to optimize the performance in UMTS network.  ...  Originally designed for a wired network, TCP exhibits degraded performance when used in a wireless network environment due a number of reasons.  ...  Performance evaluation of TCP on different types of wireless networks will help in designing an optimized solution to improving TCP's performance.  ... 
doaj:a8fae9488bf748c791f862665e4ae2da fatcat:77qcchfdvneq5iddzqx4k6hzj4


Sumaiya Thaseen I, Aswani Kumar, Sulavna Singh Mahapatra
2012 ICTACT Journal on Communication Technology  
This paper mainly focuses on cross layer proposals between network and transport layer and various TCP schemes employed to enhance performance.  ...  Cross layer optimizations produced many promising results which initiated research activity in this domain.  ...  The combination of routing algorithms and cross layer optimized TCP improves the performance of DSR and TCP.  ... 
doi:10.21917/ijct.2012.0083 fatcat:ghyfw35lm5d3nhbujojdfn65nm

An empirical study of flooding in mesh networks

Thomas Zahn, Greg O'Shea, Antony Rowstron
2009 Performance Evaluation Review  
We compare three protocols: naive flooding and two optimized flooding protocols. In naive flooding, all nodes rebroadcast received flood messages once.  ...  However, contrary to common opinion, with background traffic the optimized flooding protocols perform sufficiently poorly to seriously question their viability in 802.11-based mesh networks.  ...  Naive versus Optimized Flooding To understand why the performance of part-optimized flooding is different from that of optimized flooding, we need to look at the number of duplicates received.  ... 
doi:10.1145/1639562.1639584 fatcat:jt3vl2maxvd2hcyni2brchqb6i

Performance improvement in wireless networks using cross-layer ARQ

Dzmitry Kliazovich, Fabrizio Granelli, Mario Gerla
2007 Computer Networks  
LLE-TCP demonstrates the performance improvement in the range of 20-100% depending on the transmitted TCP/IP datagram size.  ...  This paper presents a novel cross-layer approach (LLE-TCP) designed for performance enhancement of TCP over a large variety of wireless networks.  ...  Flexible on/off style on-demand performance optimization, i.e. optimization is performed only in case the node operates in the wireless network and optimization is desirable. from connection splitting  ... 
doi:10.1016/j.comnet.2007.06.002 fatcat:rdo2kpjti5asvjyw554geyil7u

On Improving TCP Performance over Mobile Data Networks

Ke Liu, Jack Y.B. Lee
2016 IEEE Transactions on Mobile Computing  
This work addresses this challenge by developing a transparent protocol optimization device to perform on-the-fly protocol optimization to improve TCP's throughput performance while maintaining full compatibility  ...  Compared to current TCP implementations, the proposed protocol optimization device can raise throughput by 48% to 163%.  ...  performing optimally.  ... 
doi:10.1109/tmc.2015.2500227 fatcat:pish4jab6vefvhk6gsuww7t62u

TCP Acknowledgment Optimization in Low Power and Embedded Devices

Arūnas Statkus, Šarūnas Paulikas, Audrius Krukonis
2021 Electronics  
Paper investigates transport control protocol (TCP) acknowledgment (ACK) optimization in low power or embedded devices to improve their performance on high-speed links by limiting the ACK rate.  ...  The results of performed experiments show that TCP ACK rate limiting leads to the noticeable decrease of CPU utilization on low power devices and an increase of TCP session throughput but does not impact  ...  Other related works investigate TCP performance optimizations by applying various congestion control algorithms.  ... 
doi:10.3390/electronics10060639 fatcat:zkizzctfvzhppo62yhzxn27xnq

Cross-layer optimization of TCP throughput for DVB-S2 links

Joan Enric Barcelo, Giovanni Giambene, Maria Angeles Vazquez Castro
2008 2008 IEEE International Workshop on Satellite and Space Communications  
Our interest is optimizing the switching E b /N0 thresholds for adaptive coding and modulation selection in DVB-S2 in order to maximize the TCP goodput according to a cross-layer design approach.  ...  This paper presents a methodology to optimize the use of the forward link DVB-S2 capacity.  ...  channel at the receiver so that heavy PER TCP values may occur.  ... 
doi:10.1109/iwssc.2008.4656733 fatcat:qnnrclodqrac5mg5gjcvvzz2xa

Interdomain I/O Optimization in Virtualized Sensor Networks

Congfeng Jiang, Tiantian Fan, Yeliang Qiu, Hongyuan Wu, Jilin Zhang, Neal Xiong, Jian Wan
2018 Sensors  
For performance optimization, we use state flags in a circular buffer to reduce wait-and-notify operations and system calls during communications.  ...  In this paper, we propose an optimized interdomain communication approach based on shared memory to improve the interdomain communication performance of multiple VMs residing in the same sensor hardware  ...  the TCP/IP-based performance.  ... 
doi:10.3390/s18124395 fatcat:fsjvkj3wcrft5pujzaymrqzyyi

Modelling the Performance of TCP/ARQ over MIMO Rayleigh Fading Channels

Alberto Toledo, Xiaodong Wang, Ben Lu
2006 2006 IEEE International Conference on Communications  
We apply the framework to analyze the performance, the optimal channel coding rate and the effect of Doppler on the TCP throughput over the BLAST MIMO system and the orthogonal space-time block coded (  ...  We use the network simulator ns-2 to demonstrate the accuracy of the proposed analytical framework in characterizing various parameters of the TCP performance.  ...  The TCP segment is correctly received when all the link layer frames are successfully received.  ... 
doi:10.1109/icc.2006.254699 dblp:conf/icc/ToledoWL06 fatcat:khhd6r3iobdzrpidqfh7czuth4
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