Summary
IEICE Information and Communication Technology Forum
2016
Session Number:A1
Session:
Number:A1-2
Opportunistic Routing Using Prioritized Forwarders with Retransmission Control
Taku Yamazaki, Ryo Yamamoto, Takumi Miyoshi, Takuya Asaka, Yoshiaki Tanaka,
pp.-
Publication Date:2016-10-01
Online ISSN:2188-5079
Summary:
In ad hoc networks, broadcast based forwarding protocols called opportunistic routing have been proposed. In general opportunistic routing protocols, each receiver makes a forwarding decision using a random backoff time based on distance information autonomously. However, the forwarders must wait for the expiration of the backoff timer before the packet forwarding. Moreover, it is difficult to gain forwarding path diversity under sparse environments. In this paper, we propose a novel forwarder selection method for opportunistic routing. In the proposed method, a terminal called prioritized forwarder, which forwards packets without using the backoff time, is selected among neighbours. In addition, we integrate a hop-by-hop retransmission control in the proposed method, which improves the packet transmission success rate under sparse environments. We evaluate the proposed method in addition to the conventional protocols by using computer simulation.