On-Demand Channel Assignment Using Channel Segregation for Uplink DS-CDMA Multi-Hop Virtual Cellular Network

— In order to avoid the large peak transmit power, resulting from the high transmission rates expected for future mobile communication systems, a wireless multi-hop virtual cellular network (VCN) was recently proposed. In VCN, the transmitted signal from a mobile terminal is relayed via multi-hop links to the central port, which is the gateway to the core network. With the use of a routing algorithm based on the total uplink transmit power minimization criterion, the total transmit power of all the multi-hop links between the mobile terminal and the central port can be significantly reduced, in comparison with the present (singlehop) cellular network. Reducing the transmit power per communication contributes to reducing the interference power and hence the system capacity may be enlarged. In this paper, an “on-demand” channel assignment strategy, using the channel segregation dynamic channel allocation (CS-DCA) algorithm, is proposed for multi-hop DS-CDMA VCN. Computer simulation...

• Type: Conference
• Year: 2006
• Where: VTC
• Authors: Lalla Soundous El Alami, Eisuke Kudoh, Fumiyuki Adachi
• Keywords: Cellular Network, Transmit Power, Virtual Cellular Network, VTC 2006