A New Low Complexity Reconfigurable Channel Filter Architecture for Software Radio Handsets

摘要：

Software defined radio (SDR) is emerging as a powerful platform for future generation cellular systems due to its capability of operating according to multiple mobile radio standards. The most computationally intensive part of the digital front-end of the wideband receiver of a SDR is the channelizer, which operates at the highest sampling rate in the system. The channel filters in the channelizer extracts narrowband channels corresponding to varying communication standards from the wideband input signal. An architecture for implementing low complexity reconfigurable channel filter for the SDR mobile handsets, based on interpolation, decimation and frequency masking techniques is proposed in this paper. The proposed architecture is capable of extracting channels with different bandwidths corresponding to the channel spacing of different time-varying channels. Design examples show that proposed architecture offers 87.7 ％ complexity reduction over conventional Per-Channel approach.

关键词： Interpolation Decimation Frequency masking Low complexity Reconfigurability

作者: Smitha K.G. A.P.Vinod

作者单位: School of Computer Engineering,Nanyang Technological University Nanyang Avenue,Singapore 639798

会议类型: 国际会议

会议名称: The 11th IEEE International Conference on Communications Systems(第11届电子和电气工程师协会国际通信系统会议)(IEEE ICCS 2008)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-11-19（万方平台首次上网日期，不代表论文的发表时间）