Results 1 - 10 of 556,297

Optimality of beamforming in fading MIMO multiple access channels

by Alkan Soysal, Sennur Ulukus - IEEE Transactions on Communications , 2008
"... Abstract—We consider the sum capacity of a multi-input multi-output (MIMO) multiple access channel (MAC) where the receiver has the perfect channel state information (CSI), while the transmitters have either no or partial CSI. When the transmitters have partial CSI, it is in the form of either the c ..."
Abstract - Cited by 15 (4 self) - Add to MetaCart
Abstract—We consider the sum capacity of a multi-input multi-output (MIMO) multiple access channel (MAC) where the receiver has the perfect channel state information (CSI), while the transmitters have either no or partial CSI. When the transmitters have partial CSI, it is in the form of either

1The Dirty MIMO Multiple-Access Channel

by Anatoly Khina, Yuval Kochman, Uri Erez
"... Abstract—In the scalar dirty multiple-access channel, in ad-dition to Gaussian noise, two additive interference signals are present, each known non-causally to a single transmitter. It was shown by Philosof et al. that for strong interferences, an i.i.d. ensemble of codes does not achieve the capaci ..."
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to any number of users. Finally, an application to physical-layer network coding for the MIMO two-way relay channel is presented. Index Terms—Multiple-access channel, dirty-paper coding, multiple-input multiple-output channel, matrix decomposition, physical-layer network coding, two-way relay channel. I.

Selection of Transmit Antennas, Constellations and Powers for Correlated MIMO Multiple Access Channels

by unknown authors
"... Abstract — A novel algorithm is presented to select the transmit antennas, constellations and distribution of total power of the users in a correlated multiple-input multiple-output (MIMO) multiple access channel. Given a target probability of symbol error, the spectral efficiency for each user and ..."
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Abstract — A novel algorithm is presented to select the transmit antennas, constellations and distribution of total power of the users in a correlated multiple-input multiple-output (MIMO) multiple access channel. Given a target probability of symbol error, the spectral efficiency for each user

Optimal Operating Point for MIMO Multiple Access Channel with Bursty Traffic

by Somsak Kittipiyakul, Tara Javidi
"... Multiple antennas at the transmitters and receivers in a multiple access channel (MAC) can provide simul-taneous diversity, spatial multiplexing, and space-division multiple access gains. The fundamental tradeoff in the asymptotically large SNR regime is shown by Tse et al (2004). On the other hand, ..."
Abstract - Cited by 3 (2 self) - Add to MetaCart
multiple-access and statistical multiplexing gains. ing. Index Terms MIMO multiple access channel, diversity-multiplexing tradeoff, cross-layer optimization, statistical multiplex-I.

Optimality of beamforming for MIMO multiple access channels via virtual representation

by Hong Wan, Rong-rong Chen, Yingbin Liang - IEEE Trans Signal Process , 2010
"... Abstract—In this paper, we consider the optimality of beamforming for achieving the ergodic capacity of multiple-input multiple-output (MIMO) multiple access channel (MAC) via virtual representation (VR) model. We assume that the receiver knows the channel state informa-tion (CSI) perfectly but that ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
Abstract—In this paper, we consider the optimality of beamforming for achieving the ergodic capacity of multiple-input multiple-output (MIMO) multiple access channel (MAC) via virtual representation (VR) model. We assume that the receiver knows the channel state informa-tion (CSI) perfectly

MIMO Multiple Access Channel with an Arbitrarily Varying Eavesdropper: Secrecy degrees of freedom

by Xiang He, Ashish Khisti, Aylin Yener - IEEE TRANSACTIONS ON INFORMATION THEORY, FEBRUARY , 2013
"... A two-transmitter Gaussian multiple access wiretap channel with multiple antennas at each of the nodes is investigated. The channel matrices of the legitimate users are fixed and revealed to all the terminals, whereas the channel matrices of the eavesdropper are arbitrarily varying and only known t ..."
Abstract - Cited by 13 (5 self) - Add to MetaCart
A two-transmitter Gaussian multiple access wiretap channel with multiple antennas at each of the nodes is investigated. The channel matrices of the legitimate users are fixed and revealed to all the terminals, whereas the channel matrices of the eavesdropper are arbitrarily varying and only known

RATE REGION OF CORRELATED MIMO MULTIPLE ACCESS CHANNELS AND BROADCAST CHANNELS

by Romain Couillet, Mérouane Debbah, Jack W. Silverstein
"... In this paper, the rate region of large multi-antenna multiple access channels and broadcast channels are investigated. The propagation channels between transmitters and receivers are modelled as independent Gaussian with separable variance profiles. It is shown in particular that the large antenna ..."
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In this paper, the rate region of large multi-antenna multiple access channels and broadcast channels are investigated. The propagation channels between transmitters and receivers are modelled as independent Gaussian with separable variance profiles. It is shown in particular that the large antenna

On the degrees of freedom of MIMO Multiple access channel with multiple eavesdroppers

by Mohamed Amir, Tamer Khattab, Tarek Elfouly, Amr Mohamed
"... Abstract—Two-transmitter Gaussian multiple access wiretap channel with multiple antennas at the transmitters, legitimate receivers and eavesdroppers is studied. The existence of unknown number of eavesdroppers is assumed but with maximum number of antennas at any eavesdropper limited to a known valu ..."
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Abstract—Two-transmitter Gaussian multiple access wiretap channel with multiple antennas at the transmitters, legitimate receivers and eavesdroppers is studied. The existence of unknown number of eavesdroppers is assumed but with maximum number of antennas at any eavesdropper limited to a known

Power Allocation Games for MIMO Multiple Access Channels with Coordination

by Elena-Veronica Belmega, Samson Lasaulce, Merouane Debbah , 2009
"... A game theoretic approach is used to derive the optimal decentralized power allocation (PA) in fast fading multiple access channels where the transmitters and receiver are equipped with multiple antennas. The players (the mobile terminals) are free to choose their PA in order to maximize their indiv ..."
Abstract - Cited by 25 (18 self) - Add to MetaCart
A game theoretic approach is used to derive the optimal decentralized power allocation (PA) in fast fading multiple access channels where the transmitters and receiver are equipped with multiple antennas. The players (the mobile terminals) are free to choose their PA in order to maximize

A Deterministic Equivalent for the Analysis of Correlated MIMO Multiple Access Channels

by Romain Couillet, Mérouane Debbah, Jack W. Silverstein , 2011
"... This article provides novel deterministic equivalents for the Stieltjes transform and the Shannon transform of a class of large dimensional random matrices. These results are used to characterise the ergodic rate region of multiple antenna multiple access channels, when each point-to-point propagati ..."
Abstract - Cited by 22 (8 self) - Add to MetaCart
This article provides novel deterministic equivalents for the Stieltjes transform and the Shannon transform of a class of large dimensional random matrices. These results are used to characterise the ergodic rate region of multiple antenna multiple access channels, when each point
Results 1 - 10 of 556,297