CDMA-based cellular systems
Cross Layer Design and Analysis of Downlink Communications in Cellular CDMA Systems
... a CDMA environment. As addressed in the preceding section that in CDMA downlinks, scheduling users under better channel condition first can improve overall network ...is based on an example of ...
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A Geometrical Based Model for Cochannel Interference Analysis and Capacity Estimation of CDMA Cellular Systems
... For example, from Figure 7, it can be shown, using (23), that the maximum number of users allowed in a six-sectored cell to the ones in a system with an omnidirectional antenna is almost five times greater (Λ ∼ = 4.8 ∼ ...
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A Utility Based Downlink Radio Resource Allocation for Multiservice Cellular DS CDMA Networks
... wireless cellular networks provide a variety of services ranging from multimedia to Internet ...services cellular networks are required to support multiple classes of tra ffi c with diverse quality- ...
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Influence of laser diode nonlinearities on fibre optic systems supporting direct-sequence code division multiple access signals
... mobile cellular networks, based on analogue trans mission, in penetrating the business market there was a clear need to introduce new solutions based on the transmission of digitised voice or data ...
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Evaluation of Multiusers’ Interference on Radiolocation in CDMA Cellular Networks
... location based on its meas- urements; c) location estimation, that is, estimates from all the participating BSs are used by position location algorithms to produce an accurate estimate of the sub- scriber location ...
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Exploring the reconfigurability options of multi carrier CDMA in cognitive radio systems
... lected based on its orthogonality, correlation properties, im- plementation complexity and PAPR [4, ...in cellular networks), Gold codes have good cor- relation properties ...
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On Intercell Interference and Its Cancellation in Cellular Multicarrier CDMA Systems
... In this paper, we have described and investigated sev- eral approaches of intercell interference cancellation (ICIC) schemes in a cellular MC-CDMA downlink environment. The hard ICIC takes into account the ...
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CDMA Based Secure Cellular Communication via Satellite Link
... The cellular technology has reformed the way people interact with each ...telecommunication systems used previously are affected to the natural disasters and causes breakage in telecommunication ...The ...
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Uplink blocking probabilities in priority-based cellular CDMA networks with finite source population
... priority- based CAC in cellular systems. A distributed priority-based CAC for cellular networks is proposed in ...distinguished based on their target signal-to-noise ratio ...
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QUEUEING MODEL FOR SOFT HANDOFF ANALYSIS IN CDMA BASED WIRELESS CELLULAR NETWORK
... non-prioritized CDMA system, the effects of soft handoff and the mean cell residual time are ...scheme based on user mobility in CDMA cellular system and also studied the soft-handoff ...
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System Level Performance of Antenna Arrays in CDMA Based Cellular Mobile Radio Systems
... future CDMA- based mobile communications systems, transmit beamforming is seen as a well-promising smart antenna ...of CDMA-based ...a cellular system so that there is a clear ...
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Nonlinear Multiuser Receiver for Optimized Chaos-Based DS-CDMA Systems
... chaotic systems can be ...communication systems offer increased security of transmission because of the high sensitivity of chaotic signals to parameter and initial condition perturbations, the random-like ...
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Ant Colony Based Multiuser Detection for MC DS CDMA Systems
... Fig. 6 shows the BER performance versus signal-to-noise ratio (SNR) performance of the MRC-based correlation detector, the ML MUD and the ACO-based MUD, which was introduced in Sec- tions II and III. Again, ...
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Cell Breathing Technique for Load Balancing in Datacenter Networks
... Cell breathing has been contemplated for the most part with regards to CDMA cell systems. The inclusion and limit of a CDMA cell are contrarily related with one another. The expansion of the ...
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Multicarrier Block Spread CDMA for Broadband Cellular Downlink
... smaller. Based on this study, we can conclude that the MMSE-PT-LE o ff ers a good trade-off between performance and ...broadband cellular network, we have demonstrated the rewarding synergy between MCBS- ...
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Ber Improvement Of Ds-Cdma For Awgn And Rayleigh Fading Channel With Kasami Code
... CDMA is a well known and famous technology in cellular system due to its higher performance and capacity. It works on DS-SS modulation so it is called as DS-CDMA system. Number of users can transmit ...
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Narrow-Band Interference Suppression in CDMA Spread-Spectrum Communication Systems Using Pre-Processing Based Techniques in Transform-Domain
... In the second method, by using the Karhaunen-Loeve transform [8], the energy of the narrow-band interference is packed on to fewest number ofbasis vectors and similar to the first method, deletion of information by ...
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Time Hopping Multicarrier Code Division Multiple Access: System Outline and Performance
... 7 shows the bit error probability of the TH/MC-CDMA The detection operation of the TH/MC-CDMA system can systems with respect to supporting various number of users, be understood by mean[r] ...
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Joint interference cancellation and relay selection algorithms based on greedy techniques for cooperative DS CDMA systems
... In this section, we present and analyze a cross-layer design strategy that combines the proposed MUD tech- niques with the proposed greedy multi-relay selection algorithm for the uplink of the cooperative DS-CDMA ...
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Performance Evaluation of MC CDMA for Fixed WiMAX with Equalization
... Walsh Hadamard code: This code is used for error detection. It is named after Jacques Hadamard. This code has better BER performance than PN and Gold sequences. Walsh codes are used in direct sequence spread spectrum ...
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