A high data rate, slow frequency-hop multimedia system for mobile applications

The trends in the wireless service industry have indicated the eventual need for a high data rate, low-cost communication system. The system must be capable of robustly providing audio and data communications over a harsh mobile radio channel. A prototype system capable of reliably transmitting a 256 kbps data stream was built as part of a wide-area multimedia system that operates in the 1.9 GHz PCS band. Additionally, the system is able to tolerate vehicular speeds and delay spread conditions characteristic of suburban propagation environments employing cell radii of the order of one mile. This paper discusses this system and presents its performance under various channel conditions. The results indicate that a high data rate wireless system with a complimentary set of diversity techniques can robustly operate in a vehicular environment without the added complexity of an equalizer