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.
Multicarrier Access and Routing for Wireless Networking
General Dynamics Advanced Information Systems, Bloomington, MN 55431, USA
EURASIP Journal on Wireless Communications and Networking 2005, 2005:920219 doi:10.1155/WCN.2005.599
The electronic version of this article is the complete one and can be found online at: http://jwcn.eurasipjournals.com/content/2005/4/920219
|Received:||28 February 2005|
|Published:||8 September 2005|
© 2005 Gerakoulis
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