Expanded Subspace Approaches for Multiuser Detection for CDMA Multipath Frequency Selective Fading Channels
Multiuser detection for direct-sequence code-division multiple-access (DS/CDMA) multipath frequency-selective fading channels with intersymbol interference (ISI) is considered. The concept of expanded signal subspace is introduced to characterize the unique property of the CDMA systems in multipath channels.By fully exploiting the structure of the expanded signal subspace, novel expanded approaches are developed to jointly suppress ISI and multiple access interference (MAI). Simulations have verified that the proposed detectors are immune to MAI and ISI and are near-far resistant, significantly outperforming the conventional multiuser detectors.
multiuser detection extended. window expanded signal subspace multipath channel ISI MAI CDMA
H.Zhou W.L.Woo B.S.Sharif
School of Electrical, Electronic and Computer Engineering University of Newcastle upon Tyne Newcastle upon Tyne, NE1 7RU, UK
国际会议
武汉
英文
635-638
2005-09-23（万方平台首次上网日期，不代表论文的发表时间）