Effect of intercell pilot signals on cellular CDMA forward link
Kok L. Cheah, Kwok Hung Li · International Journal of Communication Systems · 1999
In cellular CDMA, the implementation of pilot channels on the forward link enables accurate coherent detection and synchronous transmission. In conjunction with concatenated Walsh sequences, this results in significant capacity gain. However, the undesirable co-channel interference introduced by these intercell pilot signals is seldom addressed. Our analysis indicates that ignoring its effect can overestimate the capacity by as much as 15%. A partial implementation of multiuser detection is proposed to recover most of the degradation. Copyright © 1999 John Wiley & Sons, Ltd.