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Long Term Evolution Advanced (LTE-Advanced) is the next step in LTE evolution and allows operators to improve network performance and service capabilities through smooth deployment of new techniques and technologies. LTE-Advanced uses some new features on top of the existing LTE standards and protocols to provide better user experience and higher throughputs. Some of the most significant features...
Recently, a distributed architecture for base stations was proposed. In this new configuration, the base station is separated into two parts: the radio frequency part near the antenna and the baseband processing unit. The interface connection between them is ensured by an optical fiber. In this paper, we present the ongoing works on standardization of the optical interface and the proposed solutions...
In this paper, we consider a new channel probing scheme for opportunistic scheduling in the uplink of orthogonal frequency division multiplexing (OFDM)-based wireless systems. To reduce signaling overhead for the probing, we consider a two-step channel probing process; called pre-probing and mainprobing. Good subchannels are first estimated through the pre-probing process using a probing signal transmitted...
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