Results 11 to 20 of about 741,207 (289)
Energy Efficiency and Spectral Efficiency Tradeoff in Device-to-Device (D2D) Communications [PDF]
IEEE Wireless Communications Letters, 2014 In this letter, we investigate the tradeoff between energy efficiency (EE) and spectral efficiency (SE) in device-to-device (D2D) communications underlaying cellular networks with uplink channel reuse.
Dong, Mianxiong +4 more
core +3 more sources
IEEE Access, 2020 The achievement of the boundary values of spectral efficiency is associated with the development of methods for generating and receiving signals with a compact spectrum. The reason is a constant increase in the capacity of existing communication channels
Sergey B. Makarov +6 more
doaj +1 more source
IEEE Access, 2022 Ultra densification of the number of antennas combined with the use of large bandwidths in the millimeter wave (mmWave) spectrum is considered one of the main methodologies to achieve the quality of service requirements for future generations of wireless
P. Higo Thaian da Silva +4 more
doaj +1 more source
Spectral efficiency of blackness induction [PDF]
Journal of the Optical Society of America A, 1984 The spectral efficiency of blackness induction was measured in three normal trichromatic observers and in one deuteranomalous observer. The psychophysical task was to adjust the radiance of a monochromatic 60-120' annulus until a 45' central broadband field just turned black and its contour became indiscriminable from a dark surrounding gap that ...
Werner, John S +3 more
openaire +5 more sources
Spectrally-Efficient Continuous Phase Modulations [PDF]
2008 IEEE International Symposium on Information Theory, 2008 We investigate the spectral efficiency of continuous phase modulations (CPMs). To this end, we need an effective bandwidth definition for a CPM signal, whose power spectral density has in principle an infinite support. The definition we adopt is based on the spacing between adjacent carriers in a frequency division multiplexed CPM system.
Alan BARBIERI +2 more
openaire +2 more sources
Sensors, 2023 Non-Orthogonal Multiple Access (NOMA) has become a promising evolution with the emergence of fifth-generation (5G) and Beyond-5G (B5G) rollouts. The potentials of NOMA are to increase the number of users, the system’s capacity, massive connectivity, and ...
Syed Agha Hassnain Mohsan +5 more
doaj +1 more source
Energy efficiency-spectral efficiency trade-off of transmit antenna selection [PDF]
, 2014 We investigate the energy efficiency-spectral efficiency (EE-SE) trade-off of transmit antenna selection/maximum ratio combining (TAS) scheme. A realistic power consumption model (PCM) is considered, and it is shown that using TAS can provide significant
Brante, Glauber +4 more
core +1 more source
Generalized Model for Spectral Efficiency of Cellular Systems
The Journal of Engineering Research, 2006 A general mathematical model was used to study the spectral efficiency of cellular systems. The model took into consideration effects of first and second tier interference.
A.M. Abbosh
doaj +1 more source
NOMA-Based VLC Systems: A Comprehensive Review
Sensors, 2023 The enhanced proliferation of connected entities needs a deployment of innovative technologies for the next generation wireless networks. One of the critical concerns, however, is the spectrum scarcity, due to the unprecedented broadcast penetration rate
Syed Agha Hassnain Mohsan +5 more
doaj +1 more source
Spectral Efficiency of One-Bit Sigma-Delta Massive MIMO [PDF]
, 2020 We examine the uplink spectral efficiency of a massive MIMO base station employing a one-bit Sigma-Delta ( \Sigma \Delta ) sampling scheme implemented in the spatial rather than the temporal domain.
Pirzadeh, H +3 more
core +2 more sources