Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Gubong Lim"'
Publikováno v:
IEEE Communications Letters. 19:439-442
Energy efficiency (EE) is an important objective in uplink wireless communications due to the limited capacity of batteries in user equipment (UE). In this letter, we propose a scheduling metric to balance the tradeoff between EE and fairness. We con
Publikováno v:
IEEE Transactions on Wireless Communications. 13:2696-2705
To support the heterogeneous demands for the network and mobile user equipment (UE), multiple radio access technologies (RATs), operating with different system configurations and resources, have evolved and now coexist. Recently, with data traffic ex
Publikováno v:
IEEE Communications Letters. 17:641-644
It has been shown that adaptive modulation in OFDM significantly improves performance with perfect channel state information (CSI) at the transmitter. However, it is often difficult to obtain perfect CSI at the transmitter due to feedback overhead an
Autor:
Leonard J. Cimini, Gubong Lim
Publikováno v:
IEEE Transactions on Wireless Communications. 12:1376-1385
Recently, due to the growing concern over the ever-increasing energy consumption, much attention has been given to the energy-efficient design of wireless communication systems. Various strategies for improving the energy efficiency, which is defined
Publikováno v:
IEEE Communications Surveys & Tutorials. 15:167-178
Reducing energy consumption in wireless communications has attracted increasing attention recently. Advanced physical layer techniques such as multiple-input multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM), cognitive radi
Autor:
Leonard J. Cimini, Gubong Lim
Publikováno v:
IEEE Wireless Communications Letters. 1:476-479
Recently, much attention has been given to heterogeneous networks where a mobile device is capable of accessing multiple random access networks (RANs), where each RAN operates on a different carrier frequency with a different transmission bandwidth,
Publikováno v:
GLOBECOM
This paper evaluates and compares the performance of single- user (SU) and multi-user (MU) transmission for downlink multiple-input multiple-output (MIMO) channels in terms of system energy efficiency (EE). We introduce power control algorithms to ma
Publikováno v:
MILCOM
Uplink energy-efficient communication is an important issue due to the limited battery capacity of user equipments (UEs). In this paper, we study the energy-efficient resource allocation for uplink OFDMA systems. We propose efficient suboptimal resou
Autor:
Gubong Lim, Leonard J. Cimini
Publikováno v:
ICC
Energy efficiency is a critical issue in wireless communication networks since most of the communication devices have limited energy capacity. Various strategies for maximizing energy efficiency have been proposed. In this paper, we analyze the energ
Autor:
Leonard J. Cimini, Gubong Lim
Publikováno v:
CISS
Due to the exponentially-increasing energy cosnumption of wireless mobile networks [1], energy efficiency has become an important metric in designing these networks. In this paper, we present an analysis of the energy efficiency of best-select relayi