A broadband wireless packet technique based on coding, diversity, and equalization

The choice of an air interface technique to enable broadband wireless communications has been the subject of extensive research. This article describes an air interface for 2 Mb/s wireless mobile packet data services. The key enabling technique is a reduced-complexity broadband equalizer which provides a delay spread tolerance of up to 50 μs. The proposed air interface emphasizes high packet throughput, robust performance, low packet overhead, and low-cost low-power VLSI implementation.