By Joseph Shapira
The booklet addresses the function of repeaters within the CDMA community, their interplay with the community and the wanted integrative layout and optimization of the repeater-embedded community. The procedure of the booklet is to improve useful comprehension of the advanced radio community, and affinity to the standards dominating the Radio source usage. basic types are built, and field-measured case reviews supplement the research.
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Extra info for CDMA Radio with Repeaters (Information Technology: Transmission, Processing and Storage)
It also provides macro diversity for the ST, thus further reducing its transmission power. All participating BTSs transmit simultaneously during SHO. Their forward link power control compensates only partially for the excess transmission power from the participating BTSs. 2 Soft Handoff Process The ST continuously scans the pilot code map for pilots that are strong enough to be considered for SHO. The rake receiver consists of 3 correlators ("fingers") for despreading the desired traffic and its delayed multipath repUcas, and one pilot search correlator that performs the scan.
G. diversity channels) can be similarly multiplexed or IF multiplexed in a single fiber. Free-Space Optics (FSO) repeater. The RF is modulated on a laser transmission in free space between the BTS and the repeater location. FL and RF, and multiple links can be multiplexed by IF multiplexing in a single beam. FSO requires a clear line of sight, which limits its usability to fair weather and limited distances. 5 CDMA Radio with Repeaters Repeater Classification by Application Repeaters are low-cost coverage agents in the cellular network, and are candidates to replace BTSs in coverage-limited and shadowed areas for cost saving.
Chapter Nine models the cost of repeater-embedded network. A model for large scale "Greenfield" deployment trades-off the cost constituents and the impact of the cost of the repeater vs. base station cost - on the size of each cell and the overall cost. Another model handles the "small scale" introduction of repeaters to an already existing network, for filling holes, extending coverage and covering "hot spots". Chapter Ten reviews advances in repeaters, including antenna (tilt) control, receive and transmit diversity, link stability control, interference cancellation, monitoring performance and traffic, and projects the role of repeaters in high data rate and next generation of cellular.