Through transforming the maximum-likelihood detection for MIMOsystem into an equivalent problem of searching for the closet lattice pointover a tree graph, we propose two kinds of optimal or near optimal algorithms:ML stack detection algorithms and metric-guided algorithm.

Using transmit diversity techniques, the new scheme combines the space-time block code (STBC) with spreading codes. Depending on the characteristic of complex signals and the dual orthogonality of STBC and spreading codes, the scheme can utilize the resources of space and time efficiently, and it transfers the maximum-likelihood detection into a linear processing with a simplified decoding process to resolve the high complexity problem caused by the unorthogonality of the complex signal STBC.

(3) an optimal multi-bit watermark embedding strategy and a maximum-likelihood detection for tree structure of vector HMM are proposed through system robustness analysis.

The scheme partitions transmit antennas into two groups with equal number of antennas, and diagonal unitary space-time modulation is applied on each group. The differential encoding matrix is constructed so that maximum-likelihood detection of the two diagonal signals can be decoupled, thereby reducing receiver complexity significantly.

we also review several encoding methods for Layered Space-Time codes with emphasising on following decoding schemes for V-BLAST:maximum-likelihood detection(ML),minimum-mean-squared-error(MMSE) technique , zero-forcing (ZF) algorithm,successive cancellation(SUC) and ordered successive cancellation(OSUC),etc.

Afterwards, due to the error pervasion in frequency selective channel, two kinds of improved layered detection technique: the iterative one and the one combining layered detection technique with maximum-likelihood detection are presented.

in this paper, the maximum-likelihood detection and its performance are studied for thesampled signal in all digital receivers of optical PPM communications. The algorithm of demodulation and itsupper bound of error probability are given for any pulse shape received.

LR(Lattice-Reduction)-aided algorithm for signal detection in MIMO(Multi-Input Multi-Output) systems has been proposed recently. The near maximum-likelihood detection performance can be achieved by employing the LR-aided multiuser detection algorithms.

In this paper, a low complexity coherent joint maximum-likelihood detection receiver is developed for canceling multi-access interference in impulse radio (IR) based ultra wideband (UWB) wireless communication systems.

Recently, a sphere-constrained maximum-likelihood detection, so-called sphere decoding, has drawn much attention for reducing the computational burden in MIMO transmission systems.

Maximum-likelihood detection based on branch and bound algorithm for MIMO systems

An effective a posteriori algorithm that provides for maximum-likelihood detection and identification is validated.

A correlator and a detection method are presented. The detection method is modified from "Appollo" ranging system and suitable specifically for tone-code mixed ranging system. In the "Appollo" system the maximum likelihood detection was used, while in the present detection method setting of detection threshold is float.In comparison with"Appollo"system it has obvio us advantages: cor-relation loss decreases by 6dB and configuration is very simple. These feat-ures have been proved...

A correlator and a detection method are presented. The detection method is modified from "Appollo" ranging system and suitable specifically for tone-code mixed ranging system. In the "Appollo" system the maximum likelihood detection was used, while in the present detection method setting of detection threshold is float.In comparison with"Appollo"system it has obvio us advantages: cor-relation loss decreases by 6dB and configuration is very simple. These feat-ures have been proved in use.

In this paper a novel scheme for anti-ship missile radar seeker is proposed. The theoretical basis of the scheme is the obvious difference in the depolarization between the warship and the chaff cloud. In order to examine the properties of the scheme, the depolarization characteristics of the chaff cloud are firstly analysed. Particularly, the depolarization factor is defined and its probability density is deduced. Thereby, a maximum likelihood detection system to identify chaff interference from naval...

In this paper a novel scheme for anti-ship missile radar seeker is proposed. The theoretical basis of the scheme is the obvious difference in the depolarization between the warship and the chaff cloud. In order to examine the properties of the scheme, the depolarization characteristics of the chaff cloud are firstly analysed. Particularly, the depolarization factor is defined and its probability density is deduced. Thereby, a maximum likelihood detection system to identify chaff interference from naval vessels provided and its error detection probability is calculated. Finally, several measuresto reduce the error detection probability are discussed. The results show that the sequential detection method is a better one to settle the contradiction between enhancing identifying performance and shortening observation time.

This article deals with the optimum receiver for asynchronous multipath CDMA signals by employing maximum likelihood detection, this technique is referred as multi user detector.Two practical algorithms are derived along with their computational complexity analysis.We assume every path of each user as an independent user,but the computational complexity remains the same as that of the single path case.The results of this article are helpful of determining the upper performance limit of the CDMA receiver....

This article deals with the optimum receiver for asynchronous multipath CDMA signals by employing maximum likelihood detection, this technique is referred as multi user detector.Two practical algorithms are derived along with their computational complexity analysis.We assume every path of each user as an independent user,but the computational complexity remains the same as that of the single path case.The results of this article are helpful of determining the upper performance limit of the CDMA receiver.