Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10339105 | Computer Networks | 2013 | 13 Pages |
Abstract
In this paper, we study a subchannel allocation problem that aims at maximizing the sum utility of the OFDMA-based femtocell network, which can be applied to both the dedicated channel and shared channel femtocell deployments. Since the problem is formulated as a nonlinear integer program, which is inherently difficult to solve, we propose a suboptimal subchannel allocation algorithm. The proposed subchannel allocation algorithm consists of two steps: calculating the number of subchannels that should be granted to each cell to maximize the sum utility and finding actual subchannel allocation that achieves the granted number of subchannels for each cell. Numerical results show that the proposed subchannel allocation algorithm provides near-optimal performance.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Byung-Gook Kim, Jeong-Ahn Kwon, Jang-Won Lee,