Title :
Pricing-based resource allocation in downlink multi-cell OFDMA networks
Author :
Wenmin Ma ; Wei Zheng ; Haijun Zhang ; Xiangming Wen ; Zhaoming Lu ; Deli Liu
Author_Institution :
Beijing Key Lab. of Network Syst. Archit. & Convergence, Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, a pricing-based resource allocation (PBRA) scheme is proposed in downlink multi-cell orthogonal frequency-division multiple-access (OFDMA) networks. As a powerful means to mitigate inter-cell interference (ICI), base station (BS) coordination (BSC) technology has been considered. We propose to select the set of co-channel users to maximize the system utility based on variable pricing function relating to real-time channel conditions and representing the corresponding interference degree to other coordination cells. The iterative water-filling algorithm is adopted to solve the objective problem based on the Karush-Kuhn-Tucker (KKT) conditions. Moreover, simulation results prove the substantial performance of the proposed PBRA algorithm.
Keywords :
cellular radio; frequency division multiple access; interference suppression; iterative methods; pricing; resource allocation; BSC; ICI; Karush-Kuhn-Tucker conditions; base station coordination; downlink multicell OFDMA networks; inteference interference; intercell interference; iterative water-filling algorithm; objective problem; orthogonal frequency division multiple access; pricing based resource allocation; variable pricing function; Base stations; Downlink; Interference; OFDM; Pricing; Resource management; Wireless networks; OFDMA; Pricing; base station coordination; multi-cell; resource allocation;
Conference_Titel :
Computing and Networking Technology (ICCNT), 2012 8th International Conference on
Conference_Location :
Gueongju
Print_ISBN :
978-1-4673-1326-1
