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ThinkMind // UBICOMM 2018, The Twelfth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies // View article ubicomm_2018_2_10_10046


Wireless Multihop Networks with Network Coding Communication Using Collision Detection of Control Messages

Authors:
Yusuke Aoi
Hiroaki Higaki

Keywords: Wireless Multihop Transmissions; Bidirectional Communications; Collision Avoidance; RTS/CTS Control

Abstract:
In some wireless network applications using bidirectional wireless multihop transmissions of sequences of data messages, intermediate wireless nodes hold temporarily data messages in both directions with high probability. Network coding methods have been proposed for reduction of forwarding and end-to-end transmission delays and for increase of end-to-end data message throughput. However, for collision-free transmissions, 2-hop neighbor intermediate nodes are required to be suspended during a data message transmission. Some extended Request To Send/Clear To Send (RTS/CTS) control have been proposed for network coding support; however, for avoidance of collisions between control messages, longer transmission delay is inevitable. This paper proposes a novel RTS/CTS control method for supporting network coding in bidirectional data message transmission. Here, the CTS and ACK control messages are transmitted with the usual Short Inter Frame Space (SIFS) interval and their correct simultaneous transmissions are detected by their collisions. In simulation experiments, 30.1% higher end-to-end throughput of data messages is achieved by the proposed RTS/CTS control in comparison with conventional methods.

Pages: 21 to 26

Copyright: Copyright (c) IARIA, 2018

Publication date: November 18, 2018

Published in: conference

ISSN: 2308-4278

ISBN: 978-1-61208-676-7

Location: Athens, Greece

Dates: from November 18, 2018 to November 22, 2018

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