Low Complexity Discrete Bit-loading for OFDM Systems with Application in Power Line Communications

• 作者: Amin Z. Sadik Khalifa S. Al-Mawali Zahir M. Hussain
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: Bit-Loading OFDM Power LINE COMMUNICATIONS
• 年，卷（期）: 2011,（6）
• 页码范围: 372-376
• 页数: 5页
• 分类号: TN91

摘要

Adaptive bit-loading algorithms can improve the performance of OFDM systems significantly. The tradeoff between the performance of the algorithm and its computational complexity is essential for the implementation of loading algorithms. In this paper, we present a low complexity non-iterative discrete bit-loading algorithm to maximize the data rate subject to specified target BER and uniform power allocation. Simulation results show that the proposed algorithm outperforms the equal-BER loading and achieves similar rates to incremental allocation, yet with much lower complexity.