Results 11 to 20 of about 18,564,701 (283)
Time-Hopping Multicarrier Code-Division Multiple Access [PDF]
IEEE Transactions on Vehicular Technology, 2007 A time-hopping multicarrier code-division multiple-access (TH/MC-CDMA) scheme is proposed and investigated. In the proposed TH/MC-CDMA, each information symbol is transmitted by a number of time-domain pulses with each time-domain pulse modulating a subcarrier.
Yang, L.-L., Lie-liang Yang
openaire +3 more sources
EXIT Chart Based Joint Code-Rate and Spreading-Factor Optimisation of Single-Carrier Interleave Division Multiple Access [PDF]
, 2007 —In this paper, we consider the joint code-rate and spreading-factor optimisation of turbo-style iterative joint detection and decoding assisted single-carrier interleave division multiple access (SC-IDMA) systems using different-rate convolutional codes
Zhang, R +3 more
core +2 more sources
Performance analysis of a 2-D time-wavelength OCDMA wavelength-aware receiver with beat noise [PDF]
, 2006 The effect of beat noise on two-dimensional time-wavelength optical code-division multiple-access systems utilising wavelength-aware receivers is examined. A derivation of a general formula for the bit error probability taking into consideration multiple
Taher Bazan +5 more
core +4 more sources
Hybrid Iterative Multiuser Detection for Channel Coded Space Division Multiple Access OFDM Systems [PDF]
, 2006 Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive research interests.
Jiang, M. +5 more
core +2 more sources
Repeat accumulate code division multiple access and its hybrid detection
, 2008 In this paper, we propose the novel concept of Repeat Accumulate Code Division Multiple Access (RA-CDMA), which employs unique, user-specific channel code generator matrices (interleavers) for differentiating the users.
Chen, Sheng +3 more
core +2 more sources
Three design aspects of multicarrier interleave division multiple access [PDF]
, 2008 This paper presents a novel generalized transceiver architecture, i.e., Multicarrier Interleave-Division-Multiplexing-aided Interleave Division Multiple Access (MC-IDM-IDMA). A parallel interference cancellation (PIC)-aided iterative multiuser detection (
Zhang, Rong, Hanzo, Lajos
core +1 more source
A New Prime Code for Synchronous Optical Code Division Multiple-Access Networks
Journal of Computer Networks and Communications, 2018 A new spreading code based on a prime code for synchronous optical code-division multiple-access networks that can be used in monitoring applications has been proposed.
Huda Saleh Abbas +2 more
doaj +1 more source
SCMA Spectral and Energy Efficiency With QoS
IEEE Access, 2021 Sparse code multiple access (SCMA) is one of the promising candidates for new radio access interface. The new generation communication system is expected to support massive user access with high capacity. However, there are numerous problems and barriers
S. Jaber, W. Chen, K. Wang
doaj +1 more source
IEEE Access, 2022 Current generation mobile communications require high-quality services. Adopting multiple access (MA) and multi-carrier waveforms potentially enhances the quality of services offered to end-users.
Tewelgn Kebede +4 more
doaj +1 more source
Turbo receivers for interleave-division multiple-access systems [PDF]
, 2009 In this paper several turbo receivers for Interleave-Division Multiple-Access (IDMA) systems will be discussed. The multiple access system model is presented first. The optimal, Maximum A Posteriori (MAP) algorithm, is then presented.
Cristea, Bogdan Eugen +3 more
core +1 more source