Results 41 to 50 of about 4,812 (181)
Coherent and Differential Downlink Space-Time Steering Aided Generalised Multicarrier DS-CDMA
, 2007 This paper presents a generalised MultiCarrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink.
El-Hajjar, Mohammed +3 more
core +1 more source
Time-Hopping Multicarrier Code-Division Multiple-Access [PDF]
, 2006 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 ...
Lie-liang Yang, Senior Member
core +2 more sources
Design of a Baseband Transceiver for Multicarrier CDMA Communications
EURASIP Journal on Advances in Signal Processing, 2005 Multicarrier systems have become popular for their spectral efficiency and robustness against frequency-selective fading. Multicarrier code-division multiple access (MC-CDMA) is a technique that combines the advantage of multicarrier modulation with ...
Tsai Pei-Yun +2 more
doaj +1 more source
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 This study proposes an iterative, joint channel estimation, equalization, and data detection method in the presence of high mobility for a multicarrier downlink system that communicates over rapidly time‐varying channels. The proposed method uses a basis expansion method (BEM) which has low computational complexity and helps to reduce the number of ...
Nihat Kabaoglu +3 more
wiley +1 more source
Interference-Free Broadband Single- and Multi-Carrier DS-CDMA
, 2005 The choice of the direct sequence spreading code in DS-CDMA predetermines the properties of the system. This contribution demonstrates that the family of codes exhibiting an interference-free window (IFW) outperforms classic spreading codes, provided ...
Hanzo, L., Hua, W., Yang, L-L.
core +1 more source
A Coded Bit-Loading Linear Precoded Discrete Multitone Solution for Power Line Communication [PDF]
, 2008 Linear precoded discrete multitone modulation (LP-DMT) system has been already proved advantageous with adaptive resource allocation algorithm in a power line communication (PLC) context.
Baudais, Jean-Yves +3 more
core +5 more sources
A Binary Cuckoo Search Big Data Algorithm Applied to Large‐Scale Crew Scheduling Problems
Complexity, Volume 2018, Issue 1, 2018., 2018 The progress of metaheuristic techniques, big data, and the Internet of things generates opportunities to performance improvements in complex industrial systems. This article explores the application of Big Data techniques in the implementation of metaheuristic algorithms with the purpose of applying it to decision‐making in industrial processes.
José García +5 more
wiley +1 more source
Performance evaluation of carrier interferometry implementations of MC-CDMA over a wideband channel suffering phase noise [PDF]
, 2005 In this paper the performance of Carrier Interferometry (CI) and Pseudo-Orthogonal Carrier Interferometry (PO-CI) [1] implementations of Multi-Carrier Code Division Multiple Access (MC-CDMA) are investigated.
Armour, SMD +3 more
core +2 more sources
A Multiple‐Access Time and Frequency Spectrum‐Spreading Modulation
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 In this paper a novel modulation scheme called Carrier Interleaved Multiple Access (CIMA) is proposed. CIMA provides an alternative for multiple‐access modulation accommodating resistance to noise and channel interference. The approach is based on polar signaling modulated with an FM‐like composite sinusoidal function.
Samer S. Saab +3 more
wiley +1 more source
A Tutorial on Nonorthogonal Multiple Access for 5G and Beyond
Wireless Communications and Mobile Computing, Volume 2018, Issue 1, 2018., 2018 Today’s wireless networks allocate radio resources to users based on the orthogonal multiple access (OMA) principle. However, as the number of users increases, OMA based approaches may not meet the stringent emerging requirements including very high spectral efficiency, very low latency, and massive device connectivity.
Mahmoud Aldababsa +5 more
wiley +1 more source