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The Single Base Station CDMA Uplink Model

Interference mitigation in an LTE femtocell base station using uplink antenna selection

Interference mitigation in an LTE femtocell base station using uplink antenna selection

... On the other hand, if training is not performed frequently enough, antenna selection performance decreases due to out-of-date information. An example of antenna training for LTE based on the latter method is illustrated ...

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Receiver design for the uplink of base station cooperation systems employing SC FDE modulations

Receiver design for the uplink of base station cooperation systems employing SC FDE modulations

... The considered system (shown in Figure 1) is charac- terized by partially overlapping cells, where each one is associated with a certain BS. For the sake of simplic- ity, we considered only single-antenna ...

15

DOA Estimation in the Uplink of Multicarrier CDMA Systems

DOA Estimation in the Uplink of Multicarrier CDMA Systems

... the uplink of a multicarrier code-division multiple-access (MC-CDMA) network and assume that the base station is endowed with a uniform linear ...in single- user ...

9

Comparative study of various multiuser detection and base station cooperation schemes for uplink multicell systems

Comparative study of various multiuser detection and base station cooperation schemes for uplink multicell systems

... ZF-MUD Figure 4 Spectral-efficiency versus SNR for a multicell system with the parameters N = K = 4 and α = 0.5. make use of intercell interference, its spectral-efficiency is always higher than that of the other schemes ...

16

A Game-theoretic Approach To Uplink Power Control In Cdma Networks

A Game-theoretic Approach To Uplink Power Control In Cdma Networks

... the base station has to raise its transmit power in order to deliver SIR to the base station but increase in its power also results in an increase in interference to other mobiles so that ...

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DFT-based Uplink Channel Estimation in MC-CDMA Systems

DFT-based Uplink Channel Estimation in MC-CDMA Systems

... equivalent model of MC- CDMA on the uplink is shown in ...mobile station pass through different fading channel and arrive at the base station’s ...

5

Estimation and Equalization of Fiber-Wireless Uplink for Multiuser CDMA 4g Networks

Estimation and Equalization of Fiber-Wireless Uplink for Multiuser CDMA 4g Networks

... central base station and the mobile ...conventional base station and are connected to the central base station via the ROF ...Wireless uplink consists of a wireless ...

5

Comparative Analysis of Power Control Algorithms for Uplink in CDMA System-A Review

Comparative Analysis of Power Control Algorithms for Uplink in CDMA System-A Review

... alternative base stations, especially when there are congested areas in the ...when uplink performance is of concern, the switching should happen based on the total interferences seen by the base ...

5

Optimized power allocation for iterative multiuser detection for a SC-CDMA uplink

Optimized power allocation for iterative multiuser detection for a SC-CDMA uplink

... In this paper some aspects of power profile optimization were investigated. The maximum bit error rate was considered as main constraint. At low BER this constraint gives dif- ferent results than claiming convergence to ...

6

Uplink Power Control and Soft Handoff Prioritization in Multimedia DS-CDMA

Uplink Power Control and Soft Handoff Prioritization in Multimedia DS-CDMA

... mobile station is adjusted quickly according to the received SIR at the home base ...home base station is higher than the required SIR value, increased when the received SIR is lower than the ...

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Interference Management for DS CDMA Systems through Closed Loop Power Control, Base Station Assignment, and Beamforming

Interference Management for DS CDMA Systems through Closed Loop Power Control, Base Station Assignment, and Beamforming

... Array, Base Station Assignment, Closed-Loop Power Control, Constrained LMS, DS-CDMA ...In uplink of CDMA systems, the maximum number of supportable users per cell is limited by ...

11

Performance Evaluation of Single Base Station ToA-AoA Localization in an LTE Testbed

Performance Evaluation of Single Base Station ToA-AoA Localization in an LTE Testbed

... While LTE design naturally focuses on communi- cations first and foremost, it does support localization services through two main mechanisms [13]: • Observed time difference of arrival: Using a similar concept as GPS, ...

6

Uplink Power Control in QoS-aware Multi- Service CDMA Wireless Networks

Uplink Power Control in QoS-aware Multi- Service CDMA Wireless Networks

... (i.e. i=1,…,7) their optimal service-performance – energy-consumption tradeoff (i.e. utility maximization) is achieved for high data rates even for the most distant from the base station users. Such a ...

15

Power Controlled CDMA Cell Sectorization with Multiuser Detection: A Comprehensive Analysis on Uplink and Downlink

Power Controlled CDMA Cell Sectorization with Multiuser Detection: A Comprehensive Analysis on Uplink and Downlink

... the CDMA cell, that is, increasing the number of simultaneous users that achieves their quality of service ...the uplink and the ...the uplink, the minimum total transmit power minimization problem ...

13

Uplink channel power control improvement in DS CDMA system using channel predictions

Uplink channel power control improvement in DS CDMA system using channel predictions

... 2.6 Uplink Channel The Information travels in two directions in a network: uplink (mobile-to-base station) and downlink (base ...an uplink special concern is consumption of ...

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Blind Direct Multiuser Detection for Uplink MC CDMA: Performance Analysis and Robust Implementation

Blind Direct Multiuser Detection for Uplink MC CDMA: Performance Analysis and Robust Implementation

... QS uplink of a MC- CDMA system, we first provide the analytical performance assessment of the direct blind MUD two-stage receiver pro- posed in [14], aimed at evaluating the performance degra- dation, in ...

18

On the Uplink Performance of LAS CDMA

On the Uplink Performance of LAS CDMA

... are suitable for operating in a quasi-synchronous CDMA environment. Sta´nczak et al. [5] concluded that the width ι of the IFW and the number of users K will obey K(ι + 1) ≤ G . In the LAS-CDMA 2000 system ...

10

Single User Performance of Uplink DS CDMA using Relay Assisted Diversity

Single User Performance of Uplink DS CDMA using Relay Assisted Diversity

... Figure 1: Transmitter schematic block d.iagram of the kth user. Let the complex baseband equivalent signal received by the Ith relay within the first time-slot of the nth bit duration be[r] ...

5

On the Uplink Performance of Asynchronous LAS CDMA

On the Uplink Performance of Asynchronous LAS CDMA

... In conclusion, LAS-CDMA was investigated, which exhibited a significantly better performance than the traditional random code based DS-CDMA system in a relatively low chip-rate sce- nario, provided that all ...

5

Wireless Base Station Single and Multiple Headsets

Wireless Base Station Single and Multiple Headsets

... the base station using the power cable provided. The base station can be connected to the vehicle power line and ground at any location on the truck, without risking undesired effects such as ...

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