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Asymptotically optimal transmit strategies for the multiple antenna interference channel
2008
2008 46th Annual Allerton Conference on Communication, Control, and Computing
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We consider the interference channel with multiple antennas at the transmitter. We prove that at high signal-tonoise ratio (SNR), the zero-forcing transmit scheme is optimal in the sum-rate sense. ...
Finally, we propose a non-convex optimization approach based on monotonic optimization to solve the sum rate maximization problem. ...
The two-user MISO interference channel under study (illustrated for n = 2 transmit antennas). MS1
BS1
MS2
BS2
h 11
h 12
h 22
h 21
which is minimized by the MRT beamforming vectors. ...
doi:10.1109/allerton.2008.4797627
fatcat:33xtbpapffaxfccxrdcdzybjvu
On Maximum Eigenmode Beamforming and Multi-User Gain
2011
IEEE Transactions on Information Theory
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We first study a maximum eigenmode beamforming (MEB) strategy for fading multiple access channels (MACs). ...
We also study the MEB strategy for MIMO broadcast channels (BCs). The dirty paper coding (DPC) technique is necessary in this case. ...
ACKNOWLEDGMENT The authors wish to thank J. Xiao and J. Zhang for their contributions in the simulation work on practical MIMO systems. ...
doi:10.1109/tit.2011.2145810
fatcat:zewcrhrmyvajlho655tjiv7xii
Optimal strategies for countering dual-threat jamming/eavesdropping-capable adversaries in MIMO channels
2010
2010 - MILCOM 2010 MILITARY COMMUNICATIONS CONFERENCE
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This paper investigates transmission strategies in a MIMO wiretap channel with a transmitter, receiver and wiretapper, each equipped with multiple antennas. ...
We then discuss the conditions for equilibrium outcomes in the strategic form of the game. Finally, numerical simulations are presented to corroborate the analytical results. ...
The work cited above assumes single antenna nodes; secrecy capacity for the multiple-input multiple-output (MIMO) wiretap channel, where all nodes may possess multiple antennas, has been studied in [3 ...
doi:10.1109/milcom.2010.5680228
fatcat:nvx6zkbiija45ip663n4yjyu2a
On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming
2006
IEEE Journal on Selected Areas in Communications
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We provide numerical results to confirm the optimality of ZFBF and to compare the performance of ZFBF and proposed fair scheduling schemes with that of various MIMO BC strategies. ...
Specifically, we show that a zero-forcing beamforming (ZFBF) strategy, while generally suboptimal, can achieve the same asymptotic sum capacity as that of DPC, as the number of users goes to infinity. ...
ACKNOWLEDGMENT The authors would like to thank the editor and anonymous reviewers for their thoughtful reviews and M. A. Maddah-Ali for valuable comments on the proof in Appendix III. ...
doi:10.1109/jsac.2005.862421
fatcat:d6lcyeguqza4jigntz2cidmliu
Optimal Rate and Power Allocation for Layered Transmission with Superposition Coding
2007
2007 Data Compression Conference (DCC'07)
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The optimal transmission strategy for the degraded broadcast channel is superposition coding. Codewords of different rates and powers are superimposed and transmitted over the channel. ...
When no channel state information is available at the transmitter, a multiple-antenna fading channel with either one receive or one transmit antenna can be modeled as a degraded broadcast channel where ...
The optimal transmission strategy for the degraded broadcast channel is superposition coding. Codewords of different rates and powers are superimposed and transmitted over the channel. ...
doi:10.1109/dcc.2007.63
dblp:conf/dcc/EtemadiJ07
fatcat:b4c44mwh2jgnxhsfl7g7w7hq44
Precoding for Multiple Antenna Gaussian Broadcast Channels With Successive Zero-Forcing
2007
IEEE Transactions on Signal Processing
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In this paper, we consider the multiuser Gaussian broadcast channel with multiple transmit antennas at the base station and multiple receive antennas at each user. ...
Index Terms-Controlled interference, dirty-paper coding, multiple-input multiple-output (MIMO) broadcast channels (BCs), precoding. ...
In [24] , it was shown that the optimal transmission strategy for a base station with a single transmit antenna is always to transmit to the best user, but this was shown not to be the case [2] , in ...
doi:10.1109/tsp.2007.894285
fatcat:jysisvlja5f63fnxz3lxxlgmsy
Training Sequence Optimization in MIMO Systems With Colored Interference
2004
IEEE Transactions on Communications
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In this paper, we address the problems of channel estimation and optimal training sequence design for multiple-input multiple-output systems over flat fading channels in the presence of colored interference ...
We determine the optimal training sequence set that minimizes the mean square error of the channel estimator under a total transmit power constraint. ...
We assume that the interference is composed of signals transmitted by interferers. The th interferer has transmit antennas. ...
doi:10.1109/tcomm.2004.836558
fatcat:qr6wao2oefhfjga4rjr474n6wu
Asymptotic analysis of downlink multi-cell systems with partial CSIT
2011
2011 IEEE International Symposium on Information Theory Proceedings
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We analyze the downlink of multiple input multiple output (MIMO) multicell systems in the presence of intercell interference (ICI), under different transmit channel state information (CSI) assumptions. ...
Our results show that in an interference limited regime, it is optimal for the BSs to use only a small subset of its streams to maximize the total spectral efficiency of the system. ...
We also showed that in an interference regime, it is optimal for the BSs to transmit over only a small subset of streams. ...
doi:10.1109/isit.2011.6033749
dblp:conf/isit/LakshminarayanaDA11
fatcat:qt2hkcczbzharnapzz2jvqpdle
On Multi-User Gain in MIMO Systems with Rate Constraints
2007
IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference
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We derive a closed-form expression for the transmitted sum power required by the MEB strategy and prove that this strategy is asymptotically optimal. ...
The simple closed-form expression for the MEB sum-power provides many useful insights into the asymptotic behavior of multi-user MIMO systems. ...
ACKNOWLEDGEMENT The authors wish to thank Mr. Jun Xiao for his contribution in the simulation work on IDMA systems. ...
doi:10.1109/glocom.2007.602
dblp:conf/globecom/WangP07
fatcat:f6dxnpetfrfpziy423rslkssbe
High SNR analysis of MIMO broadcast channels
2005
Proceedings. International Symposium on Information Theory, 2005. ISIT 2005.
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We study the MIMO broadcast channel and compare the achievable throughput for the optimal strategy of dirty paper coding to that achieved with sub-optimal and lower complexity linear precoding (e.g., zero-forcing ...
For multiple antenna users, uniform power allocation across the receive antennas is applied after distributing power proportional to the user weight. ...
ACKNOWLEDGMENT The author would like to thank Angel Lozano and Antonia Tulino for useful discussions on the high SNR behavior of MIMO channels. ...
doi:10.1109/isit.2005.1523760
dblp:conf/isit/Jindal05
fatcat:pqpiiq54hbeofgi3lnj2vrxvy4
On the Capacity of MIMO Cellular Systems with Base Station Cooperation
2011
IEEE Transactions on Wireless Communications
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Our results show that, allowing more users to transmit simultaneously, introducing cooperation among BSs and increasing the number of antennas (especially at each BS) are efficient ways to improve system ...
Several bounds are derived for the minimum transmission power of such rate-constrained MIMO cellular systems with various base station (BS) cooperation strategies. ...
ACKNOWLEDGMENT This work was fully supported by a grant from the University Grants Committee of the Hong Kong Special Administrative Region, China (Project No. AoE/E-02/08). ...
doi:10.1109/twc.2011.083111.101154
fatcat:kpi4agmzovcknax47537j5fmpu
Ergodic interference alignment for the SIMO/MIMO interference channel
2014
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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By combining the existing MISO and the new SIMO results, we can also cover MIMO with N t transmit antennas for the cases where either N t /N r or N r /N t is an integer R, yielding DoF = min(N t , N r ...
)KR/(R + 1) which is optimal for K > R. ...
It thereby reaches the optimal degree of freedom (DoF) K/2 of the K user SISO IC that was first achieved by asymptotic interference alignment [2] . ...
doi:10.1109/icassp.2014.6854790
dblp:conf/icassp/LejosneSY14
fatcat:x7vtifohsngkfa576txnnh3jkq
On Cellular Capacity with Base Station Cooperation
2008
IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference
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We consider a simple but asymptotically optimal matched filtering/successive interference cancellation (MF-SIC) scheme. ...
We derive several concise and closed-form bounds for the power and spectral efficiencies of various base station cooperation strategies, which provide some useful insights into cellular systems. ...
Denote by P MF-SIC (R, K) the average transmitted sum power (ATSP) per cell for the MF-SIC strategy. ...
doi:10.1109/glocom.2008.ecp.722
dblp:conf/globecom/PingWWL08
fatcat:pjz73fyhfjc3xjtl2kr2yxrymy
Relay Selection for Cognitive Massive MIMO Two-Way Relay Networks
2017
2017 IEEE Wireless Communications and Networking Conference (WCNC)
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Then, we derive optimal power allocation schemes for the end nodes to satisfy the interference constraints at the primary user (PU). ...
We first obtain asymptotic signal-to-interference-plus-noise ratio (SINR) values under the power scaling at the relay and end nodes. ...
First, S 1 and S 2 transmit x 1 and x 2 , respectively, towards R k by employing transmit-ZF precoding over the multiple access channel 1 . ...
doi:10.1109/wcnc.2017.7925681
dblp:conf/wcnc/SilvaAT17
fatcat:fcykf3kwdrdkvanxs6sgf5p5jy
High SNR Analysis for MIMO Broadcast Channels: Dirty Paper Coding Versus Linear Precoding
2007
IEEE Transactions on Information Theory
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We study the MIMO broadcast channel and compare the achievable throughput for the optimal strategy of dirty paper coding to that achieved with sub-optimal and lower complexity linear precoding (e.g., zero-forcing ...
For multiple antenna users, uniform power allocation across the receive antennas is applied after distributing power proportional to the user weight. ...
of transmit and receive antennas and users for systems in which the aggregate number of receive antennas is no larger than the number of transmit antennas. ...
doi:10.1109/tit.2007.909094
fatcat:xnpfluxsmfcfni7zwcxspfnrse
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