Thesis - smart antenna application in ds cdma mobile communication system - download as pdf file (pdf), text file (txt) or read online scribd is the world's largest social reading and publishing site. In this thesis, a new system model based on sm and cdma employing parity bit permutation spreading is proposed and investigated the proposed system takes ds-cdma direct sequence code division multiple access ds-ss direct-spread spread spectrum fbe-sm fractional bit encoded spatial modulation gprs general packet radio service. Comparison of modulation and detection techniques for cdma cellular system michael xiaolong li beng tsinghua university, 1990, beijing, china a thesis submitted in partial fulfillment of the requirements for the degree of master of applied science in the school of. The value of nmulti-carrier code division multiple access is an in this thesis, we concentrate on mc-cdma, a novel digital modulation and multi access scheme and a very multi carrier cdma system paramveer narwal, sajjan singh, dr s v a v prasad 73.
A base station smart antenna system for cdma cellular by mark c roh a base station smart antenna system for cdma cellular by mark c roh submitted to the signal-to-noise ratio, resulting in greater system capacity the aim of this thesis is to design, develop, and evaluate by computer simulation an. An abstract of the thesis of in direct-sequence code-division multiple-access (ds-cdma) this is also known as the near-far problem where a strong signal from one user interferes with other users the 24 block diagram of fh-cdma system, a) transmitter and b) receiver 14. This thesis proposes new signal and signal processing techniques for mimo communication systems having mul- tain and compare the capacity results of a downlink cdma system with either multiuser detection (ie, receiver processing) or precoding (ie, transmitter pro.
Occ-cdma system design for wireless communications by thunyawat rajatasereekul a thesis submitted to oregon state university in partial fulfillment of. Signi cantly improve the capacity of a cdma system this thesis studies two such structures: the successive interference cancellation scheme and the parallel interference cancellation scheme these multiuser receivers are integrated into an is-95 compatible receiver model which is simulated in software. Code division multiple access system, so that the system can go for more suitable modulation technique to suit the channel quality, thus we can deliver the optimum and efficient data rate to mobile terminal. In this thesis, we investigate the impact of mismatch in time-delay estimations between transmit-receive antenna pairs in a multiuser cdma mimo communication system. Yuanbin guo phd, electrical and computer engineering rice intelligent switching platform of integrated information system, ms thesis work, bupt, 1997-99 the commonality between this receiver and ldpc channel coding is explored to reduce the overall receiver system complexity o cdma algorithmic research for real-time.
This thesis examines a circular adaptive antenna array used at the mobile station for a typical direct sequence code division multiple access (ds-cdma) cellular mobile communications system the primary objective is to reduce co-channel. Design and performance analysis of novel signature code in two-dimensional optical cdma systems by mengsu zhang a thesis submitted to the university of birmingham for the degree of system performance to give the motivation of the design of a novel code named. The suitability of ofdm as a modulation technique for wireless telecommunications, with a cdma comparison thesis submitted by eric lawrey in october 1997 in partial fulfilment of the requirements for the degree of. Gnu radio + usrp2 implementation of a single-carrier zero-correlation-zone cdma system kth information and communication technology master of science thesis stockholm, sweden 2013 trita-ict-ex-2013:75 i abstract: gnu radio is a software defined radio in which components implemented in hardware are cdma system using the zcz (zero. Analysis of dsss – cdma system for varying number of users the purpose of this work is to model and analyze a cdma system while observing its response of a user david parameter optimization of cdma system thesis rutgers university, nj january 1999  peter e bandsbacher and jeeffrey l kearns, “transmission parameter selection.
University of california los angeles channel coding and power control for fh/cdma radios a dissertation submitted in partial satisfaction of the requirements for the degree doctor of philosophy. The work presented in this thesis is completely devoted to the investigation of an 5 block diagram of the detector for ofdm-cdma system note, the three time-division multiple-access (tdma) standards and one code-division multiple-access (cdma) standard the global system for mobile communications (gsm) is the. Abstract of the thesis low latency cdma-based protocol to support iot tra c in 5g by siddarth mathur thesis director: prof dipankar raychaudhuri proposed design and the performance of the cdma system and in presence of lte the cdma based transmission was prototyped using the software de ned radio (sdr) ii. Simulation of ds-cdma system by using matlab thesis this project deals with a study of cdma system and simulates it by the computer program called “matlab” we discuss in this project in.
This report is the result of my thesis work ”simulation of a cdma system based on optical orthogonal codes” which comprise 20p and was done in datatransmission at isy in link¨oping. Naval postgraduate school monterey, california thesis performance analysis of a cdma vsat system with convoltional and reed-solomon coding by ugur yigit. This paper compares the performances of direct sequence code division multiple access (cdma) and frequency hopping (fh) schemes in a cellular multiuser environment our multiuser channel model incorporates the effects of propagation, frequency selective fading, and interference among users in the presence of a constrained system bandwidth this channel model is applicable for cellular mobile. In a cdma system, the different users can be identified and, hopefully, separated at the receiver by means of their characteristic individual signature pulses (sometimes called the signature waveforms), that is, by their individual codes.
Implementation of an mc-cdma system and a study on wireless channel models by kruthika ponnusamy, be a thesis in electrical engineering submitted to the graduate faculty. Cdma (code division multiple access) cdma (code-division multiple access) is a channel access method used by various radio communication technologies it is a form of multiplexing, which allows numerous signals to occupy a single transmission channel, optimizing the use of available bandwidth.