For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
CDMA Multi-Cell Performance of Combined Serial Interference Canceller and Normalized Griffiths' Algorithm
Jonas KARLSSON Hideki IMAI
IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
interference cancellation, single-user detector, multi-user detector, cellular systems, CDMA,
Full Text: PDF>>
Interference Cancellation (IC) receivers can be used in CDMA cellular systems to improve the capacity. The IC receivers can be divided into two main categories, Single-User Detectors (SUD) and Multi-User Detectors (MUD). They have different characteristics in terms of intra-cell and inter-cell interference cancellation ability. In this paper we propose two new IC receivers that combines the properties of SUD and MUD receivers. The first one is a Serial IC receiver followed by the Normalized Griffiths' algorithm (SING). The second one is an Integrated Serial IC and Normalized Griffiths' algorithm (iSING). We first compare their basic single-cell performance with the conventional RAKE receiver, the Serial IC and the Normalized Griffiths' Algorithm. Next, we examine their multi-cell performance by doing multi-cell link-level simulations. The results show that even though the Serial IC receiver has good single-cell performance, the proposed receivers have as much as 35-40% higher capacity than the Serial IC receiver in the multi-cell case under the ideal conditions assumed in this paper.