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As a next generation railroad communication technology, 3GPP has been considered to provide railroad communication using LTE, known as LTE-R, including railroad control, passenger services, wireless surveillance video, etc. International Union of Railways (UIC) has commenced to generate LTE-R requirements. There are some technical challenges for LTE to be used for today's railroad communications because...
Because mobile devices are equipped with a limited amount of battery power, it is essential to have efficient power management mechanisms in mobile broadband networks such as mobile WiMAX and 3GPP Long Term Evolution that enable always on connectivity. This article presents the state-of-the-art power management methods in next-generation wireless networks with a focus on IEEE 802.16m based next-generation...
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