DS-CDMA wireless communications
A Novel Technique for Multiple Access Interference Reduction in DS-CDMA Wireless Communications
... The CDMA, however, has higher capacity in comparison to other systems, since it reuses frequency and has variable rate of ...of CDMA communication ...
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Multicarrier DS CDMA: A Multiple Access Scheme for Ubiquitous Broadband Wireless Communications
... forthcoming wireless Internet, which is likely to convey more downloading traf- fic than uplink (mobile-to-base) ...SC DS-CDMA or broadband MC-CDMA to achieve the best pos- sible BER ...
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Performance Improvement of Wireless communication System of DS CDMA with Rake Receiver
... of DS- CDMA wireless communication system over a multipath fading channel is ...to DS-CDMA with Rake ...the CDMA Rake receiver is ...in CDMA as effectual multipath signal ...
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A Low Complexity Joint Synchronization and Detection Algorithm for Single Band DS CDMA UWB Communications
... for wireless communication typically have a bandwidth of several GHz and can be utilized in many ways each presenting the designer with tradeoffs between cost, power, bitrate, range, and the number of users ...
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Performance and Analysis of DS CDMA Rake Receiver
... Wireless cellular telephony has been growing at a faster rate than wired-line telephone ...in wireless coverage is that it does not need the setting up of expensive infrastructure like copper or fiber ...
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Blind linear multiuser detection for DS-CDMA wireless networks
... globalised, wireless telecommunica tion must be able to provide mobile communications “anywhere” and ...future wireless communication systems, mainly due to its promise of capacity improvement over ...
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Performance of Generalized Multicarrier DS CDMA over Nakagami $m$ Fading Channels
... Modern Communications Research Institute, Northern Jiaotong University, ...ultrawide-band CDMA systems for the advanced wireless mobile communication ...
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A 2.3-MW 16.7-MHz Analog Matched Filter Circuit for DS-CDMA Wireless Applications
... This equation says that the weight of each stage can be controlled with the capacitance of S/H circuits. Since the weights are either +1 or − 1 in spread spectrum communications, all the capacitors can be designed ...
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Buffer aided distributed space time coding schemes and algorithms for cooperative DS CDMA systems
... The ever-increasing demand for performance and reli- ability in wireless communications has encouraged the development of numerous innovative techniques. Among them, cooperative diversity is one of the key ...
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Performance and Analysis of DS-CDMA Rake Receiver and Analyzing the BER Performance in Presence of Nonlinear Distortion in DS-CDMA System
... Wireless cellular telephony has been growing at a faster rate than wired-line telephone ...in wireless coverage is that it does not need the setting up of expensive infrastructure like copper or fiber ...
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Joint interference cancellation and relay selection algorithms based on greedy techniques for cooperative DS CDMA systems
... Multi-path fading is a major constraint that seriously lim- its the performance of wireless communications. Indeed, severe fading has a detrimental effect on the received signals and can lead to a ...
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Improved Iterative Parallel Interference Cancellation Receiver for Future Wireless DS-CDMA Systems
... access communications, multiuser detection and turbo MUD techniques, adaptive antenna array systems, and B3G mobile com- ...in Wireless Application and Technology, 5th European Framework Program) and NEWCOM ...
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International Journal of Emerging Technology and Advanced Engineering
... V. C OMPARISON S TUDY A ND P ROPOSED W ORK OFDM-CDMA is an effective way to combat with frequency selective fading and narrow band interference. But the obvious weak point in the OFDM-CDMA is the high PAPR ...
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A Joint Optimization Criterion for Blind DS-CDMA Detection
... This paper addresses the problem of the blind detection of a desired user in an asynchronous DS-CDMA communications system with multipath propagation channels. Starting from the inverse filter ...
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Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems
... Cognitive radio (CR) can be described as a node in a net- work with the abilities to form an awareness of its environment and context, make decisions and inferences from this informa- tion combined with knowledge of the ...
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A Unified Exact BER Performance Analysis of Asynchronous DS CDMA Systems Using BPSK Modulation over Fading Channels
... Fig. 5. BER versus the number of users K in an asynchronous DS-CDMA system using random spreading sequences and BPSK modulation commu- nicating over Nakgami- m channels. The length of the random spreading ...
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Analysis of Carrier Frequency Selective Offset Estimation - Using Zero-IF and ZCZ In MC-DS-CDMA
... Technological advances over the past two decades have led to the rapid evolution of the telecommunications industry. No longer limited to narrow-band voice signals, modern communications integrate voice, images, ...
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Signal Processing by Generalized Receiver in DS-CDMA Wireless Communication Systems with Optimal Combining and Partial Cancellation
... Another problem discussed is the problem of partial cancellation factor (PCF) in a DS-CDMA system with multipath fading channel. It is well known that the multiple access interference (MAI) can be e ffi ...
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Performance of the Smart Antenna Aided Multicarrier DS CDMA and its Uplink
... MC DS- CDMA system investigated in [8], [9], which includes the sub- classes of multitone DS-CDMA [3] and orthogonal MC DS- CDMA [4] as special ...MC DS-CDMA system ...
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Spreading Sequence Design and Theoretical Limits for Quasisynchronous CDMA Systems
... (QS) CDMA systems such as LAS-CDMA system which emerged recently, in order to reduce or eliminate the multiple access interference and multipath interference, it is required to design a set of spreading ...
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