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Performance of UWB Systems With <endeca_term>Direct-Sequence</endeca_term> Bipolar Pulse Amplitude Modulation and RAKE Reception over IEEE 802.15.3a Channel

Performance of UWB Systems With Direct-Sequence Bipolar Pulse Amplitude Modulation and RAKE Reception over IEEE 802.15.3a Channel

Direct-Sequence Pulse Amplitude Modulation (DS-PAM) has been widely proposed for Ultra... Read more

1 July, 2011
Performance Analysis of Chaotic DS-CDMA With CSK Modulation

Performance Analysis of Chaotic DS-CDMA With CSK Modulation

Direct Sequence-Code Division Multiple Access (DS-CDMA) technique is used in cellular... Read more

1 April, 2012
Cascade Adaptive IIR Notch Filter for Multiple NBI Suppression in QPSK DS-CDMA System

Cascade Adaptive IIR Notch Filter for Multiple NBI Suppression in QPSK DS-CDMA System

Bit Error Ratio (BER) performance of Quadri-Phase Shift Keying Direct-Sequence Code-Division Multiple Access (QPSK DSCDMA) communication system in the presence... Read more

31 January, 2012
Performance Analysis of Power Line Communication Using DS-CDMA Technique With Adaptive Laguerre Filters

Performance Analysis of Power Line Communication Using DS-CDMA Technique With Adaptive Laguerre Filters

...paper presents the system performance of the Power Line Communication (PLC) using Direct-Sequence Code Division Multiple Access (DS-CDMA) technique with an adaptive equalizer... Read more

1 January, 2012
Reliable Multicast MAC Protocol for Spatial Reuse Efficiency Assisted by Multicarrier DS-CDMA in WLAN Systems

Reliable Multicast MAC Protocol for Spatial Reuse Efficiency Assisted by Multicarrier DS-CDMA in WLAN Systems

The authors propose a reliable multicast MAC protocol based on the multicarrier direct-sequence code-division multiple access (MC DS-CDMA) scheme to enhance spatial... Read more

1 September, 2011
Binary De Bruijn Sequences for DS-CDMA Systems: Analysis and Results

Binary De Bruijn Sequences for DS-CDMA Systems: Analysis and Results

Code Division Multiple Access (CDMA) using Direct Sequence (DS) spread spectrum modulation provides multiple access capability essentially thanks to... Read more

18 July, 2011
Multi-User Joint Tx/Iterative Rx MMSE-FDE and Successive MUI Cancellation for Uplink DS-CDMA

Multi-User Joint Tx/Iterative Rx MMSE-FDE and Successive MUI Cancellation for Uplink DS-CDMA

Uplink multi-user Direct Sequence-Code Division Multi-Access (DS-CDMA) suffers from strong Multi-User... Read more

13 July, 2011
A Bidirectional Semi-Passive DS-CDMA-RFID Transponder for the UHF Band

A Bidirectional Semi-Passive DS-CDMA-RFID Transponder for the UHF Band

...a first realization of a semi-passive UHF RFID transponder featuring a direct sequence code division multiple access channel access method for the RFID up... Read more

11 July, 2011
Performance Analysis of Multiuser DS-UWB System With Orthogonal and Non-Orthogonal Code Under Synchronous and Asynchronous Transmission With UWB Channel Models

Performance Analysis of Multiuser DS-UWB System With Orthogonal and Non-Orthogonal Code Under Synchronous and Asynchronous Transmission With UWB Channel Models

In this paper, the authors have considered the downlink multimedia transmission with Direct Sequence-Ultra WideBand (DS-UWB) communication system. They have evaluated performance of... Read more

2 April, 2011
Performance Improvement of DS-CDMA Wireless Communication Network With Convolutionally Encoded OQPSK Modulation Scheme

Performance Improvement of DS-CDMA Wireless Communication Network With Convolutionally Encoded OQPSK Modulation Scheme

This paper considers the bit error probability analysis of Direct-Sequence Code-Division Multiple Access (DS-CDMA) system. A statistical characterization of... Read more

1 March, 2011
Adaptive BLAST-Type Decision-Feedback Equalizers for DS-CDMA Systems

Adaptive BLAST-Type Decision-Feedback Equalizers for DS-CDMA Systems

...new adaptive equalization scheme for time-varying and frequency selective channels in Direct Sequence Code Division Multiple Access (DS-CDMA) systems is proposed. It consists... Read more

10 January, 2011
Input Parameters Optimization in Swarm DS-CDMA Multiuser Detectors

Input Parameters Optimization in Swarm DS-CDMA Multiuser Detectors

In this paper, the uplink Direct Sequence Code Division Multiple Access (DS-CDMA) MultiUser Detection problem (MUD) is... Read more

21 December, 2010
Soft Decision Parallel Interference Cancellation for Scrambled/Unscrambled DS-CDMA System

Soft Decision Parallel Interference Cancellation for Scrambled/Unscrambled DS-CDMA System

A soft decision linear parallel interference cancellation for the direct sequence spread spectrum CDMA systems which can accommodate more users (K = N... Read more

1 December, 2010
An Efficient Measure for Nonlinear Distortion Severity due to HPA in Downlink DS-CDMA Signals

An Efficient Measure for Nonlinear Distortion Severity due to HPA in Downlink DS-CDMA Signals

...with the NonLinear Distortion (NLD) effects of High Power Amplifiers (HPAs) on direct sequence-code division multiple access systems. Such a distortion drastically degrades the... Read more

4 October, 2010
Defending DSSS-Based Broadcast Communication Against Insider Jammers Via Delayed Seed-Disclosure

Defending DSSS-Based Broadcast Communication Against Insider Jammers Via Delayed Seed-Disclosure

Spread spectrum techniques such as Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping (FH) have been commonly used... Read more

22 June, 2010

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