Wireless Communications: Future DirectionsJack M. Holtzman, David J. Goodman The past several years have been exciting for wireless communications. The public appetite for new services and equipment continues to grow. The Second Generation systems that have absorbed our attention during recent years will soon be commercial realities. In addition to these standard systems, we see an explosion of technical alternatives for meeting the demand for wireless communications. The debates about competing solutions to the same problem are a sign of the scientific and technical immaturity of our field. Here we have an application in search of technology rather than the reverse. This is a rare event in the information business. Happily, there is a growing awareness that we can act now to prevent the technology shortage from becoming more acute at the end of this decade. By then, market size and user expectations will surpass the capabilities of today's emerging systems. Third Generation Wireless Information Networks will place even greater burdens on technology than their ancestors. To discuss these issues, Rutgers University WINLAB plays host to a series of Workshops on Third Generation Wireless Information Networks. The first one, in 1989, had the flavor of a gathering of committed enthusiasts of an interesting niche of telephony. Presentations and discussions centered on the problems of existing cellular systems and technical alternatives to alleviating them. Although the more distant future was the announced theme of the Workshop, it drew only a fraction of our attention. |
Contents
1 | |
Development of a Digital Cellular System | 17 |
PanEuropean Project for Third | 29 |
SYSTEMS ISSUES | 54 |
A Microkernel for Mobile Networks | 69 |
Querying Locations in Wireless | 85 |
Radiation | 109 |
On the Capacity of TimeSpace | 127 |
Communications Traffic Performance | 176 |
Traffic Analysis of CoChannel | 201 |
Adaptive Channel Allocation in Cellular | 243 |
Asymptotic Bounds on the Performance | 259 |
On the Maximum Capacity of Power | 275 |
PCN MULTIMEDIA CDMA | 289 |
Multiple Access Options | 305 |
Optimal Code Rates for CDMA Packet | 318 |
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Common terms and phrases
Access-point adaptive channel allocation algorithms antennas applications assume bandwidth base station bit-rate blocking bytes capacity CDMA cell cellular network cellular systems channel allocation co-channel interference codec consider constraint cost database density digital cellular distributed operating systems dynamic dynamic channel allocation dynamic TDMA efficiency environment erlangs Figure fixed network forced termination probability frequency function g-type hand-off handoff rate handover IEEE implementation increase infrared infrastructure interface interference ISDN kb/s location area location server location updates Mb/s meteor microcells microkernel modulation multipath Multiple Access nodes noise object optical packet parameters partition pedestrian performance platform type Proc propagation protocol query RACE Mobile random ratio receiver reuse schemes signal simulation slot spectrum switch TDMA techniques Telecommunications throughput trail transmission transmitted UMTS variable vehicles WINLAB wireless