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Frequency-division multiple access (FDMA) is a channel access method used in some multiple-access protocols. FDMA allows multiple users to send data through a single communication channel, such as a coaxial cable or microwave beam, by dividing the bandwidth of the channel into separate non-overlapping frequency sub-channels and allocating each sub-channel to a separate user.
Single-carrier FDMA (SC-FDMA) is a frequency-division multiple access scheme. Originally known as Carrier Interferometry , it is also called linearly precoded OFDMA ( LP-OFDMA ). Like other multiple access schemes (TDMA, FDMA, CDMA, OFDMA), it deals with the assignment of multiple users to a shared communication resource.
The mobile transmits at the beginning of the time slot as received from the network. If the mobile is near the base station, the propagation delay is short and the initiation can succeed. If, however, the mobile phone is just less than 35 km from the base station, the delay will mean the mobile's transmission arrives at the end of the time slot.
IMT-2000 (International Mobile Telecommunications-2000) is the global standard for third generation wireless communications as defined by the International Telecommunication Union.
Dr. John K. Lattimer, who did extensive research on the Abraham Lincoln and John F. Kennedy assassinations, died in 2007 at age 92. Evan Lattimer, now 75, declined to comment on the famous French ...
Network architecture is the design of a computer network.It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as communication protocols used.
Two Nigerian men have been extradited to the U.S. after they were indicted for allegedly sexually extorting teenage boys and young men in Michigan and across the country, a prosecutor said Sunday.
ALOHAnet, also known as the ALOHA System, [1] [2] [3] or simply ALOHA, was a pioneering computer networking system developed at the University of Hawaii.ALOHAnet became operational in June 1971, providing the first public demonstration of a wireless packet data network.