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Decoupling uplink (UL) and downlink (DL) is a new architectural paradigm where DL and UL are not constrained to be associated to the same base station (BS). Building upon this paradigm, the goal of the present paper is to provide lower, albeit tight bounds for the ergodic UL capacity of a decoupled cellular network. The analysis is performed for a scenario consisting of a macro BS and a set of small...
In this paper we address the problem of designing a user selection algorithm in a multiuser multiple-input multiple-output downlink scenario. Linear precoding is adopted at the transmitter and, thus, the number of users to be served at each particular scheduling period is limited by the number of available transmit and receive antennas. The adopted scheduling criterion for the user selection is based...
We consider a system where multiple users are connected to a small cell base station enhanced with computational capabilities. Instead of doing the computation locally at the handset, the users offload the computation of full applications or pieces of code to the small cell base station. In this scenario, this paper provides a strategy to allocate the uplink, downlink, and remote computational resources...
This paper addresses the problem of precoder design in a MIMO broadcast scenario where the terminals are battery-powered devices provided with energy harvesting capabilities. Models for the power consumption of the RF and decoding stages are discussed and included in the design of the proposed scheme. Sum-rate maximization is taken as optimization policy and energy-related constraints are considered...
This paper addresses the problem of radio resource allocation in a multi-user broadcast downlink flat-fading channel, where the receiving nodes are considered to be battery-powered devices provided with energy harvesting sources. Models for the energy consumption of the RF and decoding stages are discussed and included explicitly in the design of the resource allocation strategy. The allocation is...
This paper addresses the problem of resource allocation and quality of service (QoS) management in a downlink communication system where the users are allowed to be attached to and receive data from one or several cooperating base stations (BSs) under orthogonal frequency division multiple access (OFDMA). Under the assumption that only information regarding the link path loss is available at each...
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