L
Lihai Liu
Researcher at City University of Hong Kong
Publications - 19
Citations - 1817
Lihai Liu is an academic researcher from City University of Hong Kong. The author has contributed to research in topics: Multiuser detection & Code division multiple access. The author has an hindex of 11, co-authored 16 publications receiving 1763 citations. Previous affiliations of Lihai Liu include University of Hong Kong.
Papers
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Journal ArticleDOI
Interleave division multiple-access
TL;DR: A semi-analytical technique is developed based on the density evolution technique to estimate the bit-error-rate (BER) of the IDMA scheme, which provides a fast and relatively accurate method to predict the performance of theIDMA scheme.
Proceedings ArticleDOI
On interleave-division multiple-access
TL;DR: A simple semi-analytical technique is described based on which a power allocation scheme for performance optimization of IDMA systems is developed, which demonstrates the advantages of the IDMA scheme in terms of both bandwidth and power efficiencies.
Proceedings ArticleDOI
A simple approach to near-optimal multiuser detection: interleave-division multiple-access
Li Ping,Lihai Liu,W.K. Leung +2 more
TL;DR: The proposed IDMA scheme, in which users are distinguished by different chip-level interleaving methods instead of by different signatures as in a conventional code-division multiple -access (CDMA) scheme, can achieve nearly optimal performance for systems with a large number of users.
Journal ArticleDOI
Analysis and optimization of CDMA systems with chip-level interleavers
Lihai Liu,Jun Tong,Li Ping +2 more
TL;DR: An unequal power allocation technique to increase the throughput of code-division multiple-access (CDMA) systems with chip-level interleavers and shows that with some very simple forward error correction codes, the proposed scheme can achieve throughput reasonably close to that predicted by theoretical limit in multiple access channels.
Proceedings ArticleDOI
Simple iterative chip-by-chip multiuser detection for CDMA systems
Lihai Liu,W.K. Leung,Li Ping +2 more
TL;DR: This paper examines several low-cost iterative chip-by-chip multiuser detection algorithms for chip-interleaved code-division multiple-access (CDMA) systems in multipath and multiple antenna environments.