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Corridor-based routing using opportunistic forwarding in OFDMA multi-hop networks

Alexander Kuehne, Post-doc Researcher, Communications Engineering Lab, Technische Universität Darmstadt, Germany
4 February 2013 - 1:00pm

Room 4.1.F03, Torres Quevedo Building, UC3M, Avda. Universidad, 30, 28911 Leganes – Madrid

In multi-hop networks, conventional unipath routing approaches force the data transmission to follow a fixed sequence of nodes. In this talk, 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.

Who is Alexander Kuehne?

Alexander Kuehne received the diploma and Dr.-Ing. (Ph.D.) degrees in electrical engineering from Technische Universität Darmstadt, Germany, in 2006 and 2011, respectively. He is currently working as a post-doc at the Communications Engineering Lab of Technische Universität Darmstadt.

This event will be conducted in English.

Organization: 

NETCOM Research Group (Telematics Department, UC3M); Institute IMDEA Networks