文章基本信息

标题：A Review of Cellular Networks Technology Channel Handoff TDMA and FDMA using Hybrid Scheme
本地全文：下载
作者：Sonali Gupta ; Sheilly Padda ; Umesh Sehgal 等
期刊名称：International Journal of Computer Science and Network
印刷版ISSN：2277-5420
出版年度：2017
卷号：6
期号：3
页码：405-408
出版社：IJCSN publisher
摘要：Cellular communication is a technology which mainly makes the mobile phones to communicate with each other. In Cellular communication the end user that is the mobile phone user doesn’t stay at a particular place but moves from one place to another. Handoff is allot as handover. The channel change due to handoff may be through a time slot, codeword or combination of these for TDMA, FDMA and CDMA or a hybrid scheme. For cellular communication systems, mobility and limited radio coverage of a cell requires calls to be handed over from one base station system (BSS) to an another BSS.There are occurrences where a handoff is unsucceful.Lots of research was conducted regarding this in the late 80’s main reason was found out. Because frequencies cannot be reused in adjacent cells, when a user moves from one cell to another, a new frequency must be allocated for the call. If a user moves into a cell when all available channels are in use, the user’s call must be terminated. In this paper the inter technology handovers where a calls connection is transferred from one access technology to another GSM/UMTS handoff to Wi Fi and Vice versa.
关键词：Cellular communication; Wireless networks; Sensor networks; MAHO