On TCP throughput and window size in a multihop wireless network testbed

@inproceedings{Koutsonikolas2007OnTT,
  title={On TCP throughput and window size in a multihop wireless network testbed},
  author={Dimitrios Koutsonikolas and Jagadeesh M. Dyaberi and Prashant Garimella and Sonia Fahmy and Y. Charlie Hu},
  booktitle={WinTECH '07},
  year={2007}
}
Although it is well-known that TCP throughput is suboptimal in multihop wireless networks, little performance data is available for TCP in realistic wireless environments. In this paper, we present the results of an extensive experimental study of TCP performance on a 32-node wireless mesh network testbed deployed on the Purdue University campus. Contrary to prior work which considered a single topology with equal-length links and only 1-hop neighbors within transmission range of each other… 
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23 Citations
Highly Influential Citations
4
Background Citations
10
Methods Citations
4
Results Citations
1

23 Citations

THE IMPACT OF TCP CONGESTION WINDOW SIZE

TLDR
This work aims to investigate and compare the MANET protocol performance, such as DSDV, AODV and DSR in terms of network throughput, average routing load, the packet delivery ratio (PDR), and average end-to-end delay by varying the maximum congestion window size.

Performance of TCP in Multi-Hop Access Networks

TLDR
A simple model is presented that captures the cause for the inefficiency of TCP over autorate links and several techniques at both the TCP level and the link layer to alleviate contention are examined.

A Practical Adaptive Pacing Scheme for TCP in Multihop Wireless Networks

TLDR
In a comprehensive comparative performance study, it is shown that, depending on the current network state and traffic patterns, TCP-AP achieves up to 10 times more goodput than TCP NewReno, provides excellent fairness, and is highly responsive to changing network traffic conditions.

An analytical model of TCP flow in multi-hop wireless networks

TLDR
A stochastic modelling technique is used to formulate the performance of the TCP flow, based on its interaction with the underlying wireless medium, for a single TCP flow over a multi-hop wireless network with arbitrary number of hops.

THE IMPACT OF TCP CONGESTION WINDOW SIZE ON THE PERFORMANCE EVALUATION OF MOBILE AD HOC (MANET) ROUTING PROTOCOLS

TLDR
This work aims to investigate and compare the MANET protocol performance, such as DSDV, AODV and DSR in terms of network throughput, average routing load, the packet delivery ratio (PDR), and average end-to-end delay by varying the maximum congestion window size.

Performance of multi-radio wireless mesh networks: An experimental approach

TLDR
A performance study of a wireless mesh network based on off-the-shelf 802.11 technology, focusing on ubiquitous layer 3 mechanisms, which limit bandwidth and only influence sharing, and establishing the origin of degradation and limits in performance of practical deployments.

Analysis of TCP performance on multi-hop wireless networks: A cross layer approach

A Novel Receiver-Aided Scheme for Improving TCP Performance in Multihop Wireless Networks

TLDR
Compared with several contemporary TCP schemes, experimental studies reveal that the TCP-RA scheme can accurately differentiate various packet losses and efficiently improve the throughput performance by control the sending rate smartly.

Centralized Rate Allocation and Control in 802.11-based Wireless Mesh Networks

TLDR
It is shown that only non-work-conserving rate-based scheduling can effectively enforce rate allocation via a single centralized traffic-aggregation point, and a framework of centralized, measurement-based, feedback-driven mechanisms that can enforce a rate allocation policy objective for adaptive traffic streams in a WMN is proposed.

ENHANCEMENT OF TCP PERFORMANCE WITH THE HELP OF SNOOP PROTOCOL IN WIRED CUM WIRELESS NETWORK

  • M. Kaur
  • Computer Science, Business
  • 2012
TLDR
The role of Snoop protocol that overcomes the limitations of TCP protocols in wireless media is explained and the results showed that Snoop benefits from this approach which has made a significant performance improvement over regular TCP in multihop wired cum wireless networks.

References

SHOWING 1-10 OF 21 REFERENCES

The impact of multihop wireless channel on TCP throughput and loss

TLDR
This paper studies TCP performance over multihop wireless networks that use the IEEE 802.11 protocol as the access method and proposes two techniques, link RED and adaptive pacing, through which it is able to improve TCP throughput by 5% to 30% in various simulated topologies.

TCP over wireless multi-hop protocols: simulation and experiments

TLDR
This paper provides new insight into two critical problems of TCP over wireless multi-hop, the conflict between data packets and ACKs, which causes TCP performance to degrade for window sizes greater than 1 packet and the interaction between MAC and TCP layer backoff timers which causes severe unfairness and capture conditions.

Experimental Analysis of TCP Performance in Static Multi-hop Ad Hoc Networks

TLDR
This chapter investigates the performance of TCP in static multi-hop ad hoc networks in a simple, but interesting, scenario, i.e., a chain topology with different number of hops and investigates some results contrasting with simulations.

Analysis of TCP performance over mobile ad hoc networks

TLDR
A new metric, expected throughput, is introduced for the comparison of throughput in multi-hop networks, and this metric is used to show how the use of explicit link failure notification (ELFN) techniques can significantly improve TCP performance.

TCP behavior across multihop wireless networks and the wired internet

TLDR
The fairness issues of multiple TCP flows as well as the coexistence of TCP flows and video streams in the wired/wireless scenario are investigated and will prove very valuable to future commercial and military ad hoc networks.

Experimental investigations into TCP performance over wireless multihop networks

TLDR
The final result of the study is a recommendation of some TCP and IEEE 802.11 parameters that are best for TCP performance over wireless multi-hop networks, the most critical of these include setting a destination dependent clamp on the sender congestion window and disabling the RTC-CTS handshake.

On setting TCP's congestion window limit in mobile ad hoc networks

TLDR
This paper shows and proves that, independent of the MAC layer protocol being used, the BDP of a path in MANET cannot exceed the round-trip hop-count of the path, and proposes an adaptive CWL setting strategy to dynamically adjust TCP's CWL according to the current RTHC of its path.

A comparison of mechanisms for improving TCP performance over wireless links

TLDR
The results show that a reliable link-layer protocol with some knowledge of TCP provides very good performance, and it is possible to achieve good performance without splitting the end-to-end connection at the base station.

Capacity of Ad Hoc wireless networks

TLDR
The question “Are large ad hoc networks feasible?” reduces to a question about the likely locality of communication in such networks, and it is shown that for total capacity to scale up with network size the average distance between source and destination nodes must remain small as the network grows.

A high-throughput path metric for multi-hop wireless routing

TLDR
Measurements taken from a 29-node 802.11b test-bed demonstrate the poor performance of minimum hop-count, illustrate the causes of that poor performance, and confirm that ETX improves performance.