A Technology Convergence (Triple-Play) Perspective
نویسندگان
چکیده
This paper focuses on spectrum availability as the primary driver in wireless architectural design and explores the influence of spectrum policy and spectrum access techniques on the convergence role of mobile communications technology and systems. Two wireless implementations will be reviewed: Wi-Fi (IEEE 802.11) and 3G. Both are essential to convergence and triple-play strategies in the United States as well as globally, since WiFi/Wi-MAX capabilities will need to coexist with 3G and its successor technologies in many parts of the world. After a brief description of the specifications and characteristics of Wi-Fi and 3G, the two will be compared across the following dimensions in more specific terms: spectrum standards evolution, mobility versus bandwidth, cellular versus island versus lily pond architecture, DSSS versus OFDM, spectrum policy, spectrum efficiency, and interference.
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