Results 71 to 80 of about 832 (201)
Journal of Computer Networks and Communications, 2013 In NDMA (network diversity multiple access), protocol-controlled retransmissions are used to create a virtual MIMO (multiple-input multiple-output) system, where collisions can be resolved via source separation.
Ramiro Samano-Robles, Atilio Gameiro
doaj +1 more source
, 2006 In this contribution, we study a reduced-complexity multiuser detection aided multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) scheme, which employs both time (T)-domain and frequency (F)-domain spreading.
Wei, H., Yang, L-L., Hanzo, L.
core
, 2004 In this paper, we present a blind Per-Survivor Processing (PSP)-hased Multiuser Detector (MUD) for synchronous Multicarrier (MC) Direct Sequence (DS) CDMA systems.
Yeap, B-L +4 more
core
A Semi-Blind Channel Equalisation Strategy for the UMTS-TDD Downlink
, 2004 In this paper, we propose a semi-blind channel equalisation scheme for the downlink time-division duplex (TDD) component of the universal mobile telecommunication system (UMTS).
Weiss, S, Weiss, S., Hadef, M., Hadef, M
core
Blind Chip-Rate Equalisation for DS-CDMA Downlink Receiver
, 2003 A dispersive channel in the DS-CDMA downlink destroys the orthogonality of the synchronous users' spreading sequences. In this paper, we aim to re-establish this orthogonality blindly by means of a common chip-level equaliser. The adaptation algorithm is
S. Weiss +11 more
core +1 more source
Iterative Joint Channel Estimation and Symbol Detection for Multi-User MIMO OFDM
, 2006 Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems have recently attracted substantial research interest. However, compared to Single-Input-Single-Output (SISO) systems, channel estimation in the MIMO scenario
Jiang, M. +3 more
core
Space-Time Coded MC-CDMA: Blind Channel Estimation, Identifiability, and Receiver Design
EURASIP Journal on Advances in Signal Processing, 2002 Integrating the strengths of multicarrier (MC) modulation and code division multiple access (CDMA), MC-CDMA systems are of great interest for future broadband transmissions. This paper considers the problem of channel identification and signal combining/
Li Hongbin, Sun Wei
doaj +1 more source
, 2011 A semi-blind adaptive space–time equaliser (STE) has recently been proposed based on a concurrent gradient-Newton(GN) constant modulus algorithm (CMA) and soft decision-directed (SDD) scheme for dispersive multiple-input multiple-output (MIMO) systems ...
Cheng, Huiting, Chen, Sheng
core
EURASIP Journal on Advances in Signal Processing, 2002 A downlink receiver is proposed for space-time block coded CDMA systems operating in multipath channels. By combining the powerful RAKE receiver concept for a frequency selective channel with space-time decoding, it is shown that the performance of ...
Jayaweera Sudharman K, Poor H Vincent
doaj +1 more source
Multi-User Joint Detection Using Bi-Directional Deep Neural Network Framework in NOMA-OFDM System. [PDF]
Sensors (Basel), 2022 Rahman MH +5 more
europepmc +1 more source