Open Access

Multicarrier Access and Routing for Wireless Networking

EURASIP Journal on Wireless Communications and Networking20052005:920219

DOI: 10.1155/WCN.2005.599

Received: 28 February 2005

Published: 8 September 2005

Abstract

A multicarrier access and routing system has been proposed for use in wireless networks. Users within each cell access a radio port (RP). All RPs are connected to a radio exchange node (REN) which routes the calls or packets. The uplink access is orthogonal multicarrier code-division multiple access (MC-CDMA) and the downlink transmission is multicarrier orthogonal code-division multiplexing (MC-OCDM). The REN contains a switch module which provides continuous routes between wireless terminals without demodulation/remodulation or channel decoding/reencoding. The switch module is nonblocking and has complexity and speed linearly proportional to its size. Also, the switch module does not introduce interference into the network. Any existing interference or noise in its input port is transferred to its output port. The input-output switch connections are assigned on demand by a control unit. A random input/output port assignment process can achieve maximum switch throughput.

Keywords

multicarrier access multicarrier routing multicarrier CDMA radio exchange node switch module

Authors’ Affiliations

(1)
General Dynamics Advanced Information Systems

Copyright

© Diakoumis Gerakoulis 2005

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.