Articles de revista
Enviaments recents
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Strong secrecy on a class of degraded broadcast channels using polar codes
(2018-06-15)
Article
Accés obertAsymptotic secrecy-capacity achieving polar coding schemes are proposed for the memoryless degraded broadcast channel under different reliability and secrecy requirements: layered decoding or layered secrecy. In these ... -
Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation
(2012-06)
Article
Accés restringit per política de l'editorialMultiple-antenna detection of a Gaussian signal with spatial rank one in temporally white Gaussian noise with arbitrary and unknown spatial covariance is considered. This is motivated by spectrum sensing problems in the ... -
Cramer-Rao bounds in the estimation of time of arrival in fading channels
(2018-03-16)
Article
Accés obertThis paper computes the Cramer-Rao bounds for the time of arrival estimation in a multipath Rice and Rayleigh fading scenario, conditioned to the previous estimation of a set of propagation channels, since these channel ... -
Feasibility of precise navigation in high and low latitude regions under scintillation conditions
(2018-02-06)
Article
Accés obertScintillation is one of the most challenging problems in Global Navigation Satellite Systems (GNSS) navigation. This phenomenon appears when the radio signal passes through ionospheric irregularities. These irregularities ... -
Performance analysis of feedback-free collision resolution NDMA protocol
(2018-12-01)
Article
Accés obertTo support communications of a large number of deployed devices while guaranteeing limited signaling load, low energy consumption, and high reliability, future cellular systems require efficient random access protocols. ... -
Energy efficiency in latency-constrained application offloading from mobile clients to multiple virtual machines
(2017-11-28)
Article
Accés obertThis paper addresses the energy-latency trade-off in distributed application offloading, in which an energy-limited handset offloads totally or partially an application to one or several virtual machines (VMs) located in ... -
Network dimensioning and base station on/off switching strategies for sustainable deployments in remote areas
(2017-12)
Article
Accés obertThis paper provides a methodology for the dimensioning of the access network in remote rural areas, considering the progressive introduction of cellular services in these regions. A 3G small cell (SC) network with one or ... -
Parameter estimation in wireless sensor networks with faulty transducers: a distributed EM approach
(2018-03-01)
Article
Accés obertWe address the problem of distributed estimation of a vector-valued parameter performed by a wireless sensor network in the presence of noisy observations which may be unreliable due to faulty transducers. The proposed ... -
User association strategies in HetNets leading to rate balancing under energy constraints
(2017-12)
Article
Accés obertThis paper deals with the development of several strategies for associating users to base stations (BSs) in heterogeneous networks. These strategies are able to balance the rate among users and BSs and increase the overall ... -
Efficient use of paired spectrum bands through TDD small cell deployments
(2017-09)
Article
Accés obertTraditionally, wireless cellular systems have been designed to operate in frequency division duplexing (FDD) paired bands that allocate the same amount of spectrum for both downlink (DL) and uplink (UL) communications. ... -
The TUCAN3G project: wireless technologies for isolated rural communities in developing countries based on 3G small-cell deployments
(2016-07-01)
Article
Accés obertRecent years have witnessed a massive penetration of cellular systems in developing countries. However, isolated rural areas (sparsely inhabited by low-income population) have been disregarded because classical access and ... -
Joint user scheduling, precoder design, and transmit direction selection in MIMO TDD small cell networks
(2017-04-01)
Article
Accés obertNew short-length single-direction frame structures are proposed for 5G time division duplex (TDD) systems, where the transmit direction [i.e., either downlink (DL) or uplink (UL)] can be independently chosen at each cell ...
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