Uplink capacity analysis of two-hop-relay CDMA cellular systems
Tongxin xuebao, 2010 Based on the two-hop-relay CDMA cellular systems,two kinds of out-of-band relaying methods were pro-posed to improve the conventional CDMA cellular systems.Then by analyzing the interference power of the non-relaying CDMA cellular systems,the overall ...
LU Wei-feng1, WU Meng2
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Journal of Engineering and Sustainable Development, 2008 Code Division Multiple Access (CDMA) suffers from multi-user interference (MUI), and intersymbol interference (ISI) under frequency selective multi-path fading channels. Orthogonal Frequency Division Multiple access (OFDM) is MUI free but achieves lower
Maha George Zia, Harith Akram Nassir
doaj
Improving the Throughput of DS-CDMA Systems Using Adaptive Rate Transmissions Based on Variable Spreading Factors [PDF]
, 2002 In this contribution adaptive rate transmissions are investigated in the context of DS-CDMA systems using variable spreading factors (VSF). In contrast to conventional adaptive rate transmission schemes, where the transmission rate is usually adapted in ...
Yang, L.L., Hanzo, L.
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Reverse-Link Performance of Synchronous DS-CDMA Systems in Dispersive Rician Multipath Fading Channels [PDF]
, 2003 The reverse-link performance of synchronous DS-CDMA is investigated in Rician multipath fading environments. The numerical results show that the performance benefits of synchronous transmission depend on the specular path’s power as well as on the ...
Hwang, S.H., Hanzo, L.
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Coded Modulation Assisted Iterative Parallel Interference Cancellation Aided CDMA [PDF]
, 2003 In this contribution we investigate Trellis Coded Modulation (TCM) and Turbo Trellis Coded Modulation (TTCM) assisted iterative parallel interference cancellation aided CDMA schemes.
Ng, S.X., Hua, Wei, Hanzo, L.
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Slow Frequency Hopping Assisted MC DS-CDMA using Large Area Synchronised Spreading Sequences [PDF]
, 2005 The family of Multi-Carrier Direct-Sequence CDMA (MC DS- CDMA) systems exhibits numerous attractive properties, which render them attractive candidates for next-generation wireless communications.
Wei, H, Yang, L-L., Hanzo, L.
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Iterative multiuser detection and channel decoding for DS-CDMA using Harmony Search [PDF]
, 2009 A novel random-guided optimization method is proposed for multiuser detection (MUD) in DS-CDMA systems employing the so-called Harmony Search (HS) algorithm.
Zhang, Rong, Hanzo, Lajos
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A Spread Spectrum Sequence for MC-CDMA System
Dianxin kexue, 2015 The MC-CDMA system takes the advantages of the OFDM system and the CDMA system.The MC-CDMA system is a kind of wireless communication aroused an ongoing and growing research interests,which has the characteristics of high bit transmission rate,high ...
Zhicheng Zhang, Xiaona Huang, Li Xiong
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Block-Adaptive Kernel-Based CDMA Multiuser Detector [PDF]
, 2002 The paper investigates the application of a recently introduced learning technique, called the relevance vector machine (RVM) to construct a block-adaptive kernel-based nonlinear multiuser detector (MUD) for direct-sequence code-division multiple-access (
Hanzo, L., Chen, S.
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Adaptive Beamforming and Adaptive Modulation-Assisted Network Performance of Multiuser Detection-Aided FDD and TDD CDMA Systems [PDF]
, 2007 The network performance of a frequency division duplex and time division duplex (TDD) code division multiple access (CDMA)-based system is investigated using system parameters similar to those of the Universal Mobile Telecommunication System.
Blogh, J.S., Ni, S., Hanzo, L.
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