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On the throughput of linear wireless multi-hop networks using directional antennas

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2 Author(s)
Dritsoula, L.K. ; Athens Inf. Technol., Athens, Greece ; Papadias, C.B.

The goal of this paper is to examine and evaluate the advantages of utilizing directional antennas in a simple linear wireless network. We consider a one-dimensional communication network with a single source node S, a single destination node D, and N-1 intermediate nodes placed equidistantly between them. Multi-hop transmission is a natural extension of single-hop transmission that can take advantage of the reduced attenuation between closely spaced relay nodes. After replacing omni-directional antennas with directional ones, the following effects take place: Each node transmits now with less power; interference is caused only in the direction of transmission; finally, the simultaneously transmitting nodes can be closer to each other, thus allowing higher frequency reuse. All these result in substantial gains in the end-to-end network throughput.

Published in:

Signal Processing Advances in Wireless Communications, 2009. SPAWC '09. IEEE 10th Workshop on

Date of Conference:

21-24 June 2009