12 Wireless Communications Systems Design and Considerations

A wireless communication system designer requires a wide range of requirements and conditions. One decision in one design step is closely related to another decision in the next design step. Thus, it is very difficult to optimize many metrics such as complexity (or area in a chip), throughput, latency, power consumption, and flexibility because many of them are trade-off relationship. A wireless communication system designer often makes a decision subjectively and empirically. In this chapter, we take a look at considerations when designing wireless communications systems. We mainly deal with wireless communication system design flows and considerations, a high level view of wireless communication systems, several implementation techniques, and hardware/software codesign.

12.1 Wireless Communications Systems Design Flow

A brief design flow of wireless communications systems is as follows: Firstly, the international regulator such as the International Telecommunication Union (ITU) defines the spectrum allocation for different services such as satellite services, land mobile services, and radar services. The regional regulatory bodies such as European Conference of Postal and Telecommunications Administrations (CEPT) in Europe and Federal Communications Commission (FCC) in the United States play quite important role in the decision making process in the ITU. They build a regional consensus even if there are ...

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