9Routing in Cellular Wireless Networks
9.1 Introduction
In 1979, the World Administrative Radio Conference (WARC‐79) suggested the allocation primarily of the 806–902 MHz frequency band along with the allocation of the 470–512 MHz and 614–806 MHz bands on a secondary basis for land mobiles [1]. The cellular mobile radio became operational for civilian use in the 1980s in various countries across the world. Although the number of users was only in thousands, which is insignificant in terms of today’s user base, still it was a time when the cellular network kept improving to overcome various challenges faced by the cellular mobile technology of the age.
European countries were among the first users of the cellular radio network, with a hundred thousand users in Finland, Denmark, Norway, and Sweden where the operations began in 1981. Bahrain has been reported as the first country to have cellular radio operations in mid‐1978 through the Bahrain Telephone Company, followed by Tokyo in Japan where the operations started at the end of 1978 through the Nippon Telegraph and Telephone Public Corporation. Other cities in Japan followed soon thereafter. There were about 30 000 mobile radio customers in Tokyo during the early 1980s, and 40 000 users in total in the ...
Get Network Routing now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
