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Corridor-based Routing using Opportunistic Forwarding in OFDMA Multihop Networks

Kühne, A. and Klein, A. and Loch, Adrian and Hollick, Matthias (2012):
Corridor-based Routing using Opportunistic Forwarding in OFDMA Multihop Networks.
In: 23rd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'12), pp. 1330--1335, DOI: 10.1109/PIMRC.2012.6362553,
[Conference or Workshop Item]

Abstract

In multi-hop networks, conventional unipath routing approaches force the data transmission to follow a fixed sequence of nodes. In this paper, we widen this path to create a corridor of forwarding nodes. Within this corridor, data can be split and joined at different nodes as the data travels through the corridor towards the destination node. To split data, decode-and-forward OFDMA is used since with OFDMA, one can exploit the benefits of opportunistically allocating different subcarriers to different nodes according to their channel conditions. To avoid interference, each subcarrier is only allocated once per hop. For the presented scheme, the problem of optimizing the network throughput by means of resource and power allocation is formulated and two suboptimal algorithms are proposed to solve this problem with feasible effort. Simulations show that in multi-hop networks corridor-based routing using opportunistic forwarding outperforms conventional unipath routing approaches in terms of achievable throughput.

Item Type: Conference or Workshop Item
Erschienen: 2012
Creators: Kühne, A. and Klein, A. and Loch, Adrian and Hollick, Matthias
Title: Corridor-based Routing using Opportunistic Forwarding in OFDMA Multihop Networks
Language: German
Abstract:

In multi-hop networks, conventional unipath routing approaches force the data transmission to follow a fixed sequence of nodes. In this paper, we widen this path to create a corridor of forwarding nodes. Within this corridor, data can be split and joined at different nodes as the data travels through the corridor towards the destination node. To split data, decode-and-forward OFDMA is used since with OFDMA, one can exploit the benefits of opportunistically allocating different subcarriers to different nodes according to their channel conditions. To avoid interference, each subcarrier is only allocated once per hop. For the presented scheme, the problem of optimizing the network throughput by means of resource and power allocation is formulated and two suboptimal algorithms are proposed to solve this problem with feasible effort. Simulations show that in multi-hop networks corridor-based routing using opportunistic forwarding outperforms conventional unipath routing approaches in terms of achievable throughput.

Title of Book: 23rd IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'12)
Uncontrolled Keywords: Mobile Networking
Divisions: 20 Department of Computer Science > Sichere Mobile Netze
18 Department of Electrical Engineering and Information Technology > Institute of Computer Engineering > Multimedia Communications
18 Department of Electrical Engineering and Information Technology > Institute of Computer Engineering
18 Department of Electrical Engineering and Information Technology
20 Department of Computer Science
Date Deposited: 31 Dec 2016 11:08
DOI: 10.1109/PIMRC.2012.6362553
Identification Number: TUD-CS-2012-0262
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