Dynamic Control and Resource Allocation in Wireless-Infrastructured Distributed Cellular Networks with OFDMA

—In this paper, we consider joint optimization of end-to-end data transmission and resource allocation for Wireless-Infrastructured Distributed Cellular Networks (WIDCNs), where each base station (BS) in a cell is connected with its neighboring BSs via wireless links, and a mobile station (MS) can access one or multiple adjacent BSs simultaneously through time-varying OFDMA channels. The communications between a source MS and a destination MS are carried out with the help of BSs in the multi-hop, distributed manner. To achieve the joint optimization for such WIDCNs, a Stochastic Network Utility Maximization (SNUM) problem is formulated under the constraints of OFDMA sub-channel allocation on time-varying access links (both uplink and downlink), as well as routing and scheduling on forwarding links among BSs. By decomposing the corresponding dual problem, transforming it into a stochastic convex optimization problem and solving it by quasi-gradient method, we obtain distributed dynami...

• Type: Conference
• Year: 2009
• Where: ICPPW
• Authors: Lei You, Ping Wu, Mei Song, Junde Song, Yong Zhang
• Keywords: Distributed And Parallel Computing, End-to-end Data Transmission, ICPPW 2009, Joint Optimization, OFDMA Sub-channel Allocation