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
CHRISTIAN OZO TITLE-TAKING’ AND LEADERSHIP- THE STUDY OF THE IGBO PEOPLE OF OZUBULU, ANAMBRA STATE-NIGERIA
Background to the Study
Ozo title-taking is an interesting cultural practice in Igbo-land. This title-taking was the br...
PROPOSED RECREATIONAL PARK
ABSTRACT
Mans activities are affected in several ways by the immediate environment he lives in and what...
THE CHALLENGES OF THE INTERNET IN TODAY'S NIGERIA BUSINESS ENVIRONMENT
ABSTRACT
This study was carried out on the challenges of the internet in today's Nigeria business environment using...
CAUSES AND EFFECT OF TWITTER BAN ON NIGERIA CITIZENS
ABSTRACT
The focus of this study is to identify the causes and effects of the Twitter ban on Nigeria...
THE IMPACT OF SATELLITE TELEVISION ON NIGERIAN CULTURE
ABSTRACT
This research work is set to see how satellite television has affected the knowledge, belief,...
THE ROLE OF RELIGION IN THE POLITICS OF DELTA STATE
ABSTRACT
Inspite of the religious was of the people of Delta State, the question of the role of religion in the politic...
DEVELOPMENT OF AN ETHNOSCIENCE DATABASE AND ITS IMPACTS ON STUDENTS LEARNING OUTCOMES IN BASIC SCIENCE IN SOUTHWESTERN NIGERIA
Background to the Stusy
Science serves as a veritable tool for the sustainable growth and development of a nation. Indeed the strength of...
DESIGN AND IMPLEMENTATION OF AN INVENTORY MANAGEMENT SYSTEM FOR WALID HALAL SPICES
ABSTRACT
This thesis portrays the Inventory Management System adequately to decide the possibility and convenience of a completed system....
FEVER AS A PREDICTOR FOR MALARIA INFECTION AMONG INDIVIDUALS ATTENDING KOFAI PHCC IN ARDO-KOLA LGA TARABA STATE
BACKGROUND OF STUDY
Malaria is a life threatening parasitic disease transmitted by female Anopheles mosquitoes. In Niger...
INVESTIGATION OF OIL/DIESEL CONTAMINATION AND WASTE WATER SEEPAGE USING 2-D ELECTRICAL RESISTIVITY AND GROUND PENETRATION RADAR
CHAPTER ONE
INTRODUCTION
Background to the study: Soil has many varying functions aside...
