DEVELOPMENT OF A MODIFIED ARTIFICIAL FISH SWARM ALGORITHM PARTIAL TRANSMIT SEQUENCE TECHNIQUE FOR PEAK TO AVERAGE POWER RATIO REDUCTION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 3000
ABSTRACT
Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier frequency multiplexing scheme used in broadband wireless communication systems and has advantages such as high spectral efficiency, simple channel equalization and flexibility.One of its major challenges is the high Peak-to-Average Power Ratio (PAPR) of the signal which can cause a nonlinear signal distortion and reduction in power efficiency. One of the techniques used to reduce PAPR is the Partial Transmit Sequence (PTS) technique which can be applied to the transmit data. However, selecting the right phase factor sequence that can give the least PAPR is the major challenge faced by the PTS technique due to its non-linear optimization problem of phase factor sequence selection. Also, it suffers from high complexity and memory use when there is a large number of non-overlapping sub-blocks in one symbol. In order to address this, an intelligent search optimization algorithm is required to aid selecting the right phase factor sequence that gives the least PAPR. Therefore, this research work developed a modified Artificial Fish Swarm Algorithm (AFSA) based PTS technique and generated an optimum phase factor sequence, which in turn aided in PAPR reduction. The proposed technique was implemented using MATLAB R2015a and simulations were carried out using Bit Error Rate (BER) and Complementary Cumulative Density Function (CCDF) as performance metrics to evaluate its performance. Simulation results showed that the modified AFSA based PTS technique outperformed the AFSA based PTS technique in PAPR reduction with a percentage improvement of (6.67%), (3.33%) and (3.13%), when the number of subcarriers were 32, 128 and 256 respectively. Subsequently, the obtained results were compared with those of Zhou et al., (2014) as a means of validation and it was found out that the modified AFSA based technique had an improved percentage performance of (1.69%) in PAPR reduction over MECAFSA-PTS technique. These results showed that the modified AFSA-PTS technique is effective in reducing the PAPR of an OFDM system.
Related Project Materials
PERCEIVE INFLUENCE OF LIBRARY SERVICE ON SENIOR SECONDARY SCHOOL STUDENT MATHEMATICS IN MAKURDI LOCAL GOVERNMENT AREA OF BENUE STATE
ABSTRACT
This study examined the perceive influence of library service on senior secondary school...
STATISTICAL ANALYSIS OF THE NUMBER OF BABIES ADMITTED IN THE MOTHERLESS BABY HOME (1995 – 2004)
INTRODUCTION
Motherless babies home refers to a place or a home whereby infant baby who has no female parent. While Orph...
EFFECT OF SMART CONTRACT ON FINANCIAL MARKETS
Background Of The Study
The emergence of advanced technologies has led to increased competition between...
THE EFFECT OF CLASS SIZE ON ACADEMIC ACHIEVEMENT OF JUNIOR SECONDARY SCHOOL STUDENTS
ABSTRACT
The study looked at the class size as it relates to academic performance of student in Abeokuta South Local Gov...
DESIGN AND DEVELOPMENT OF A FITNESS APP
ABSTRACT
This project (DESIGN AND DEVELOPMENT OF A FITNESS APP) is going to be a fitness app that allows user to get fit either at the gy...
CONSTRUCTION OF A MICROCONTROLLER BASED T-JUNCTION TRAFFIC LIGHT CONTROLLER
ABSTRACT
T-junction traffic light controller is such a device that will play a significant role in controlling traffic at junctions, to e...
COMMUNICATION: THE KEY IN EFFECTIVE PUBLIC RELATION
EXCERPT FROM THE STUDY
Communication and business success are inseparable. To be able to attain organizational objective...
FEMINIST AESTHETICS IN OLA ROTIMI’S OUR HUSBAND HAS GONE MAD AGAIN AND FEMI OSOFISAN’S MOROUNTODUN
ABSTRACT
Feminism as a concept gained approval the help of some male feminist writers who write for the sake of women li...
THE EFFECT OF BAD GOVERNANCE ON THE ECONOMIC GROWTH OF STATES IN NIGERIA
ABSTRACT
Some scholars tend to focus attention on ‘good governance’ as a panacea for eeconomic growth and de...
IMPACT OF ADVERTISING ON THE SERVICES OF FAST FOOD INDUSTRY
ABSTRACT
This work is on the impact of advertising on the services of fast food industry using Mr. Bigg...
