TCP improvement in multi-radio multi-channel multi-hop networks

ABSTRACT

In this paper, we seek to enhance the poor performance of original TCP in wireless multi-hop environments due to the intra-flow contention between TCP-DATA and TCP-ACK packets. Assuming multi-radio multi-channel networks, where each station is equipped with multiple radios and the same number of orthogonal channels, we propose to use virtually different paths with different channel assignments for TCP-DATA and TCP-ACK transmissions. Simulations show that TCP performance can be improved significantly since TCP-DATA and TCP-ACK paths hardly interfere with each other.

REFERENCES

• 1: Tianbo Kuang , Carey Williamson, A bidirectional multi-channel MAC protocol for improving TCP performance on multihop wireless ad hoc networks, Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems, October 04-06, 2004, Venice, Italy [doi>10.1145/1023663.1023717]
• 2: Asad Amir Pirzada , Marius Portmann , Jadwiga Indulska, Evaluation of multi-radio extensions to AODV for wireless mesh networks, Proceedings of the 4th ACM international workshop on Mobility management and wireless access, October 02-02, 2006, Terromolinos, Spain [doi>10.1145/1164783.1164791]

INDEX TERMS

Primary Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.1 Network Architecture and Design
          Subjects: Wireless communication

Additional Classification:
  C. Computer Systems Organization
  C.2 COMPUTER-COMMUNICATION NETWORKS
      C.2.0 General
          Subjects: Data communications
      C.2.6 Internetworking
  C.3 SPECIAL-PURPOSE AND APPLICATION-BASED SYSTEMS
      Subjects: Signal processing systems

General Terms:
Design, Experimentation, Measurement, Performance

Keywords:
TCP, multi-channel, multi-hop networks, multi-radio