Matlab Simulation of Digital (QPSK) Line-of-Sight Radio Link

Telecommunication system is one of the major components in industry. It can be summarized as the transmission, reception, and processing of information between two or more locations, using either digital or analogue transmission. Wireless technologies become essential when guided media connections are difficult to provide economically. Wireless communication system affected by external (atmosphere) factors. Studies need to be done at certain places before actual communication system been implemented. The wireless transmissions over large water areas are different as compared to transmission over land in term of propagation conditions, radio wave reflection over water and ducting, which make them more difficult to design. However, they are very essential to remote-island or off-shore location to communicate with offices on main land. The main objective of this project is to develop a MATLAB simulation for QPSK that considered external factors in radio transmission. The analysis carried out was on BER performance for QPSK system, phasor and constellation analysis. This analysis is to determine that the simulation is well defined with the theoretical value. Factors involved in determining system performance such as multipath fading and AWGN also has been considered. The simulation output of the Maximal Ratio Combining (MRC) Space Diversity configuration for multiple receive antennas which shows the improvement in the received signal is also been analyzed

Mobile and Wireless Communications

Mobile and Wireless Communications have been one of the major revolutions of the late twentieth century. We are witnessing a very fast growth in these technologies where mobile and wireless communications have become so ubiquitous in our society and indispensable for our daily lives. The relentless demand for higher data rates with better quality of services to comply with state-of-the art applications has revolutionized the wireless communication field and led to the emergence of new technologies such as Bluetooth, WiFi, Wimax, Ultra wideband, OFDMA. Moreover, the market tendency confirms that this revolution is not ready to stop in the foreseen future. Mobile and wireless communications applications cover diverse areas including entertainment, industrialist, biomedical, medicine, safety and security, and others, which definitely are improving our daily life. Wireless communication network is a multidisciplinary field addressing different aspects raging from theoretical analysis, system architecture design, and hardware and software implementations. While different new applications are requiring higher data rates and better quality of service and prolonging the mobile battery life, new development and advanced research studies and systems and circuits designs are necessary to keep pace with the market requirements. This book covers the most advanced research and development topics in mobile and wireless communication networks. It is divided into two parts with a total of thirty-four stand-alone chapters covering various areas of wireless communications of special topics including: physical layer and network layer, access methods and scheduling, techniques and technologies, antenna and amplifier design, integrated circuit design, applications and systems. These chapters present advanced novel and cutting-edge results and development related to wireless communication offering the readers the opportunity to enrich their knowledge in specific topics as well as to explore the whole field of rapidly emerging mobile and wireless networks. We hope that this book will be useful for students, researchers and practitioners in their research studies