An Efficient Multipath Detection Scheme for CDMA Systems Academic Article

abstract

• In conventional CDMA receivers, the detection of multipath components and RAKE finger management is normally based on the received signal energy per path. These schemes essentially overlook the interference component contaminating the total received power. Consequently, they exhibit poor multipath detection capability especially at low signal-to-interference-plus-noise ratio (SINR). In this paper, we present a new scheme for multipath detection that takes into consideration the interference level in each resolved path individually. Specifically, the proposed scheme is devised to estimate and cancel the interference per path before detection. To account for the hardware limitations of the receiver, we propose a low complexity version of the above scheme which can be easily incorporated into the receiver structure. Our results show that the proposed scheme provides significant improvements in the detection probability of multipath components over the energy-based schemes. 2007 IEEE.

authors

• Ghrayeb, Ali

published proceedings

• IEEE Transactions on Wireless Communications

author list (cited authors)

• Abou-Khousa, M., Ghrayeb, A., El-Tarhuni, M., & Senior.

citation count

• 1

complete list of authors

• Abou-Khousa, Mohamed||Ghrayeb, Ali||El-Tarhuni, Mohamed

publication date

• August 2007

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Transactions on Wireless Communications  Journal

Digital Object Identifier (DOI)

• 10.1109/twc.2007.06042

start page

• 2776

end page

• 2781

volume

• 6

issue

• 8

URL

• http://dx.doi.org/10.1109/twc.2007.06042