ABSTRACT
In this age of technology, the trend is for wireless multimedia communication systems that keep getting better and better. In recent years, there has been a lot of emphasis on using mobile wireless systems instead of wired communication networks. In the current situation, users have access to low data rate services, but a broadband communication system is becoming the most important need in both the private and public sectors. For multimedia mobile systems to be able to communicate, the transmission rate should be as large as possible, in the megabits per second range. If the amount of data being sent is measured in megabits, then the time delay value will be higher than the one-time symbol. The adaptive equalization technique can be used to fix this delay, but it is expensive and hard to set up. Orthogonal frequency division multiplexing is one way to solve the problems of multipath fading and keep things simple (OFDM). With the assistance of a parallel data transmission method, it lessens the effect of multipath fading.
The chapter gives a brief introduction to the generations in wireless communication, and an overview of orthogonal frequency division multiplexing (OFDM), its motivation, and the need for OFDM. Various challenges in the field of wireless communication systems are also discussed, including privacy, infrastructure, security, utilization of spectrum, modulation, and different channel coding techniques. The final section of the chapter discusses the scope of OFDM systems from a future point of view.
