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Wireless personal communications, or wireless as it is now being called, has arrived. The hype is starting to fade, and the hard work of deploying new systems and services for personal communications is underway. In the United States, the FCC propelled the wireless era from infancy to mainstream with a $7.7 billion auction of 60 MHz of radio spectrum in the 180011900 MHz band. With the largest single sale of public property in the history of mankind mostly complete, the resources of the entire world are being called upon to develop inexpensive, rapidly deployable wireless systems and sub scriber units for an industry that is adding s\lbscribers at greater than 50% annual rate. This growth is commonplace for wireless service companies throughout the world, and in the U.S., where as many as 7 licensed wireless service providers may be competing for cellularlPCS customers within the next couple of years, differentiators in cost, qual ity, service, and coverage will become critical to customer acceptance and use. Many of these issues are discussed in the papers included in this book.
Inhaltsverzeichnis
I Wireless Networks And Services.- 1. DID Trunks Via The Cellular System.- 2. 28 GHz Local Multipoint Distribution Service (LMDS) : Strengths and Challenges.- 3. A Wireless Infrastructure to Support Research Activities.- 4. A CDPD Performance Model for an Intelligent Transportation Systems Architecture Evaluation.- 5. Capacity of Channel Hopping Channel Stream On Cellular Digital Packet Data (CDPD).- 6. A CSMA/CA Protocol for Wireless Desktop Communications.- II Wireless CDMA.- 7. CDMA Forward Link Capacity in a Flat Fading Channel.- 8. The Effect of Directional Antennas in CDMA Wireless Local Loop Systems.- 9. Decision-Directed Coherent Delay-Locked PN Tracking Loop for DS-CDMA.- III Antennas, Propagation and System Design.- 10. Adaptive Beamforming for Wireless Communications.- 11. PCS System Design Issues in the Presence of Microwave OFS.- 12. An Evaluation Point Culling Algorithm for Radio Propagation Simulation Based on the Imaging Method.- 13. Space vs. Polarization Diversity Gain in 2 GHz PCS 1900.- 14. Minimization of Outage Probability in Cellular Communication Systems by Antenna Beam Tilting.- 15. Performance of RSS-, SIR-based Handoff and Soft Handoff in Microcellular Environments.- IV. Simulation, Modulation and Equalization for Wireless Communications.- 16. On the Use of Signal-To-Noise Ratio Estimation for Establishing Hidden Markov Models.- 17. On the Performance of 4-Phase Sequences in Asynchronous CDMA Systems.- 18. Adaptive MLSE Equalization Forms for Wireless Communications.- 19. Simulation of RBDS AM Subcarrier Modulation Techniques to Determine BER and Audio Quality.- 20. Simulation of Reverse Channel of Narrowband PCS.
Zusammenfassung
This growth is commonplace for wireless service companies throughout the world, and in the U.S., where as many as 7 licensed wireless service providers may be competing for cellularlPCS customers within the next couple of years, differentiators in cost, qual ity, service, and coverage will become critical to customer acceptance and use.
