Results 21 to 30 of about 911,344 (281)
The model of information capacity for underwater wireless optical communication (UWOC) links with pointing errors and the carrier of perfect Laguerre–Gaussian (PLG) beam in absorbed and weakly turbulent seawater is modeled.
Yixin Zhang, Qingze Yan, Lin Yu, Yun Zhu
doaj +1 more source
On Non-coherent MIMO Channels in the Wideband Regime: Capacity and Reliability [PDF]
We consider a multiple-input, multiple-output (MIMO) wideband Rayleigh block fading channel where the channel state is unknown to both the transmitter and the receiver and there is only an average power constraint on the input.
Medard, Muriel +2 more
core +2 more sources
Multi-channel Peer-to-Peer (P2P) Video-on-Demand (VoD) systems can be categorized into independent-channel P2P VoD systems and correlated-channel P2P VoD systems.
Yifeng He, Ling Guan
doaj +1 more source
Peak-to-average power ratio of good codes for Gaussian channel [PDF]
Consider a problem of forward error-correction for the additive white Gaussian noise (AWGN) channel. For finite blocklength codes the backoff from the channel capacity is inversely proportional to the square root of the blocklength.
Polyanskiy, Yury, Wu, Yihong
core +2 more sources
An adaptive q-Lognormal model towards the computation of Average Channel Capacity in slow fading channels [PDF]
Abstract The characterization of multipath fading and shadowing in wireless communication systems is essential towards the evaluation of various performance measures. It is well known that the statistical characterization of shadowing phenomena is captured by distributions viz., log-normal distribution, gamma distribution and other mixture ...
Tanmay Mukherjee, Dilip Senapati
openaire +1 more source
Power Allocation and Capacity Analysis for FBMC-OQAM With Superimposed Training
Superimposed training (ST) is a semiblind channel estimation technique, proposed for orthogonal frequency division multiplexing (OFDM), where training sequences are added to data symbols, avoiding the use of dedicated pilot-subcarriers, and increasing ...
Juan Carlos Estrada-Jimenez +3 more
doaj +1 more source
Secrecy Analysis of Directional mmWave UAV-Based Links Under Hovering Fluctuations
Recent developments in Unmanned Aerial Vehicles (UAVs) technology have paved the way to their utilization in different fields and applications. Among these applications, UAVs have been widely investigated as a good candidate to serve as mobile base ...
Saud Althunibat +3 more
doaj +1 more source
Average channel capacity for Rake receivers
The average channel capacity (in the Shannon sense) assigned to each user of a spread spectrum system operating in Rayleigh fading is estimated when optimum operation of a maximal ratio combining Rake receiver is assumed. As is shown, the derived expression fully conforms to the upper bound for the capacity of an ideal non-fading additive white ...
Varzakas, P., Tombras, G.S.
openaire +2 more sources
Capacity per Unit-Energy of Gaussian Random Many-Access Channels [PDF]
We consider a Gaussian multiple-access channel with random user activity where the total number of users $\ell_n$ and the average number of active users $k_n$ may be unbounded.
Koch, Tobias, Ravi, Jithin
core +2 more sources
The Maximum Error Probability Criterion, Random Encoder, and Feedback, in Multiple Input Channels
For a multiple input channel, one may define different capacity regions, according to the criterions of error, types of codes, and presence of feedback. In this paper, we aim to draw a complete picture of relations among these different capacity regions.
Ning Cai
doaj +1 more source

