Results 91 to 100 of about 574 (170)

A Turbo-Detection Aided Serially Concatenated MPEG-4/TCM Videophone Transceiver

, 2004
A Turbo-detection aided serially concatenated inner Trellis Coded Modulation (TCM) scheme is combined with four different outer codes, namely with a Reversible Variable Length Code (RVLC), a Non-Systematic Convolutional (NSC) code a Recursive Systematic ...
Ng, S. X., Chung, J. Y., Hanzo, L., Guo, F.   +3 more
core  

Efficient Computation of EXIT Functions for Nonbinary Iterative Decoding

, 2006
The calculation of nonbinary extrinsic information transfer charts for the iterative decoding of concatenated index-based codes is addressed. We show that the extrinsic information at the output of a constituent a posteriori probability decoder can be ...
Ng, S.X, Kliewer, Jorg, Hanzo, L
core  

Joint optimisation of turbo trellis coded modulations and incremental redundancy

Electronics Letters, 2002
The optimisation of turbo trellis coded modulations and partial incremental redundancy, i.e. Hybrid ARQ type 3, is presented for the UMTS system with 16 QAM.
openaire   +1 more source

Coded Modulation Assisted Genetic Algorithm Based Multiuser Detection for CDMA Systems

, 2002
In this contribution we propose a novel Coded Modulation assisted Genetic Algorithm based Multiuser Detection (CM-GA-MUD) scheme for synchronous CDMA systems.
Ng, S.X., Ng, S. X., Hanzo, L., Yen, K.
core  

Iteratively Decoded Variable Length Space-Time Coded Modulation: Code Construction and Convergence Analysis

, 2007
An Iteratively Decoded Variable Length Space Time Coded Modulation (VL-STCM-ID) scheme capable of simultaneously providing both coding and iteration gain as well as multiplexing and diversity gain is proposed. Non-binary unity-rate precoders are employed
Yang, L.-L., Ng, S.X., Tao, M., Ng, S. X., Wang, J., Hanzo, L.   +5 more
core   +1 more source

Jointly optimised iterative source-coding, channel-coding and modulation for transmission over wireless channels

, 2004
Joint source-coding, channel-coding and modulation schemes based on Variable Length Codes (VLCs), Trellis Coded Modulation (TCM), Turbo TCM (TTCM), Bit-Interleaved Coded Modulation (BICM) and iteratively decoded BICM (BICM-ID) schemes are proposed.
Yang, L.-L., Ng, S.X., Wang, J., Hanzo, L., Guo, F.   +4 more
core  

Maximum Euclidean distance network coded modulation for asymmetric decode-and-forward two-way relaying

, 2013
Network coding (NC) compresses two traffic flows with the aid of low-complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two-way relaying, where each receiver is collocated with a ...
Chen, Wei, Hanzo, Lajos, Cao, Zhigang
core   +1 more source

Soft-Bit Assisted Iterative AMR-WB Source-Decoding and Turbo-Detection of Channel-Coded Differential Space-Time Spreading Using Sphere Packing Modulation

, 2007
Jointly optimised iterative source- and channel-decoding is used for enhancing the error resilience of the Adaptive Multi Rate WideBand (AMR-WB) speech codec.
Alamri, O., S. Othman, El-Hajjar, M., O. Alamri, N. S. Othman, L. Hanzo, Othman, N.S., Hanzo, L., M. El-hajjar   +8 more
core   +1 more source

Iterative Detection of Diagonal Block Space Time Trellis Codes, TCM and Reversible Variable Length Codes for Transmission over Rayleigh Fading Channels

, 2004
Iterative detection of Diagonal Block Space Time Trellis Codes (DBSTTCs), Trellis Coded Modulation (TCM) and Reversible Variable Length Codes (RVLCs) is proposed.
Ng, S. X., Hanzo, L., Guo, F.
core  

A Turbo-Coded Burst-by-Burst Adaptive Wide-Band Speech Transceiver

, 2000
Turbo-coded burst-by-burst adaptive orthogonal frequency division multiplex (AOFDM) wide-band speech transceivers are proposed. A constant throughput adaptive OFDM transceiver was designed and benchmarked against a time-variant rate scheme.
Münster, M., Keller, T., Hanzo, L.
core