Advanced Wireless Communications
4G Cognitive and Cooperative Broadband Technologies
Chapter One
Fundamentals
1.1 4G AND THE BOOK LAYOUT
Currently the research community and industry in the field of telecommunications are considering
possible choices for solutions in the fourth generation (4G) of wireless communications. This chapter
will start with a generic 4G system concept that integrates available advanced technologies and then
focuses on system adaptability and reconfigurability as possible options for meeting a variety of
service requirements, available resources and channel conditions. The elements of such a concept can
be found in Refs. The chapter will also try to offer a vision beyond the state of the art, with
the emphasis on how advanced technologies can be used for efficient 4G multiple access. Among the
relevant issues the focus will be on:
* adaptive and reconfigurable coding and modulation including distributed source coding which is
of interest in data aggregation in wireless sensor networks;
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