Noncoherent sequential code acquisition based on simplified maximum likelihood ratios

Authors:
Hyoungmoon Kwon;Iickho Song;Seokho Yoon;Jumi Lee;Sun Yong Kim;Bo-Hyun Chung
Affiliations:
Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Yuseong Gu, Daejeon, Republic of Korea;Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Yuseong Gu, Daejeon, Republic of Korea;School of Information and Communication Engineering, Sungkyunkwan University, Suweon, Gyeonggi, Republic of Korea;Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea;Department of Electronic Engineering, Konkuk University, Seoul, Republic of Korea;Mathematics Section, College of Science and Technology, Hongik University, Jochiwon, Chungnam, Republic of Korea
Venue:
Signal Processing
Year:
2005

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Abstract

In this paper, we consider the noncoherent code acquisition problem using sequential schemes. To alleviate the computational complexity of the maximum likelihood method, simplified schemes are proposed and analyzed for the truncated sequential probability ratio test. The performance of the simplified and original schemes are compared in additive white Gaussian noise and slowly varying fading channels. Numerical results show that the proposed schemes have essentially the same performance as the original schemes while allowing simpler structures.