Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Koralia N. Pappi"'
Autor:
Panagiotis D. Diamantoulakis, Koralia N. Pappi, George K. Karagiannidis, Hong Xing, Arumugam Nallanathan
Publikováno v:
IEEE Access, Vol 5, Pp 1534-1547 (2017)
This paper jointly investigates the downlink/uplink of wireless powered networks (WPNs), which are exposed to the effect of the cascaded near-far problem, i.e., the asymmetric overall degradation of the users' performance, due to different path-loss
Externí odkaz:
https://doaj.org/article/8dee25427fe44c21969cb99d7254d3e7
Autor:
George K. Karagiannidis, Panagiotis D. Diamantoulakis, Koralia N. Pappi, Sami Muhaidat, Paschalis C. Sofotasios, Sotiris A. Tegos
Publikováno v:
IEEE Transactions on Communications. 67:6572-6585
One of the major goals of emerging wireless systems is to prolong the lifetime of wireless communication devices. To this end, this contribution evaluates and optimizes the performance of simultaneous wireless information and power transfer (SWIPT) w
Publikováno v:
IEEE Communications Letters. 21:2274-2277
We propose and study the application of distributed non-orthogonal multiple access (NOMA) for the uplink of cloud radio access networks. By considering that the remote radio heads are able to exchange digital information through high capacity links o
Autor:
George K. Karagiannidis, Koralia N. Pappi, Sami Muhaidat, Tamer Khattab, Panagiotis D. Diamantoulakis
Publikováno v:
IEEE Transactions on Vehicular Technology. 66:5904-5918
The ever-increasing demand for mobile Internet and high-data-rate applications poses unique challenging requirements for 5G mobile networks, including spectrum limitations and massive connectivity. Cognitive radio and carrier aggregation (CA) have re
Autor:
George K. Karagiannidis, Paschalis C. Sofotasios, Panagiotis D. Diamantoulakis, Koralia N. Pappi, Zheng Ma, Xianfu Lei
Publikováno v:
GLOBECOM
Airborne radio access networks (A-RANs) is a particularly promising technology due to its ability to offer fast, cost-efficient, and on- demand enhancement of the existing telecommunication infrastructure. The main challenges of ARANs are the energy
Publikováno v:
SPAWC
Nowadays, a significant goal of technology is to prolong the lifetime of the wireless communication devices. To this end, this paper studies and optimizes the performance of simultaneous wireless information and power transfer with an integrated ener
Autor:
George K. Karagiannidis, Georgia D. Ntouni, Bayan S. Sharif, Koralia N. Pappi, Panagiotis D. Diamantoulakis
Publikováno v:
IEEE Wireless Communications Letters. 4:385-388
Dynamic power allocation and power splitting, in a multicarrier two-hop link with a wireless powered relay, is investigated. We first formulate the corresponding optimization problem, which consists of the joint optimization -in terms of achievable r
Publikováno v:
IEEE Wireless Communications Letters. 4:265-268
In this work, optimal energy and resource allocation for the downlink of an autonomous energy-harvesting base station is investigated. In particular, the joint maximization of the users' utilities and the base station's revenue is considered, while t
Publikováno v:
ICT
We jointly optimize the downlink and the uplink of a wireless powered communication network and improve their rates, by utilizing corresponding priority weights. Two communication protocols are taken into account, namely time division multiple access
Publikováno v:
IEEE Wireless Communications Letters. 3:62-65
Polar codes have recently been proven to be capacity achieving for the physically degraded relay channel and relevant coding schemes have been proposed in the literature. In this paper, we deal with the design of polar codes in decode-and-forward rel