Results 171 to 180 of about 9,770 (211)
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Proceedings of the 2019 ACM Symposium on Principles of Distributed Computing, 2019
We develop randomized distributed algorithms for many of the most fundamental communication problems in the wireless SINR model, including (multi-message) broadcast, local broadcast, coloring, MIS, and aggregation. The complexity of the algorithms is optimal up to polylogarithmic preprocessing time. It shows -- contrary to expectation -- that the plain
Magnús M. Halldórsson, Tigran Tonoyan
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We develop randomized distributed algorithms for many of the most fundamental communication problems in the wireless SINR model, including (multi-message) broadcast, local broadcast, coloring, MIS, and aggregation. The complexity of the algorithms is optimal up to polylogarithmic preprocessing time. It shows -- contrary to expectation -- that the plain
Magnús M. Halldórsson, Tigran Tonoyan
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2014 IEEE Wireless Communications and Networking Conference (WCNC), 2014
We propose a coordinated multicell beamformer design method based on the signal-to-interference-plus-noise ratios (SINRs) balancing technique within the context of mixed quality of services (QoS). Instead of attaining an overall balance of SINRs to all users in all cells, the proposed algorithm allows a specific subset of users in each cells to achieve
Yu Wu +2 more
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We propose a coordinated multicell beamformer design method based on the signal-to-interference-plus-noise ratios (SINRs) balancing technique within the context of mixed quality of services (QoS). Instead of attaining an overall balance of SINRs to all users in all cells, the proposed algorithm allows a specific subset of users in each cells to achieve
Yu Wu +2 more
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Maximum SINR beamforming for correlated sources
1995 International Conference on Acoustics, Speech, and Signal Processing, 2002We consider the signal-to-interference plus noise ratio (SINR) performance of several beamforming algorithms, taking particular account of the contribution of sources correlated with the desired signal. In addition, we derive an optimal method that maximizes SINR by combining with the desired signal estimate any components of the interference ...
Jiankan Yang, A. Lee Swindlehurst
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Distributed power control in the SINR model
2011 Proceedings IEEE INFOCOM, 2011The power control problem for wireless networks in the SINR model requires determining the optimal power assignment for a set of communication requests such that the SINR threshold is met for all receivers. If the network topology is known to all participants, then it is possible to compute an optimal power assignment in polynomial time.
Zvi Lotker +3 more
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On improving SINR in LTE HetNets with D2D relays
Computer Communications, 2016 Femtos, with frequency reuse one, can be deployed in hotspots, offices and residences alike to provide high indoor data rates and reduce traffic load on Macro.
Vanlin Sathya +2 more
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Downlink SINR distribution in a heterogeneous cellular wireless network with max-SINR connectivity
2011 49th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2011Recent results [1], [2] on the distribution of the downlink SINR in heterogeneous wireless networks assume that the serving base station (BS) for a given user (UE) location is either (a) the BS that is geographically nearest to the UE location [1], or (b) the one that has the highest received power at the UE location [2].
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Bandwidth-SINR Tradeoffs in Spatial Networks
2007 IEEE International Symposium on Information Theory, 2007This paper addresses the following question, which is of interest in the design of a multiuser decentralized network: given a total system bandwidth of W Hz and a fixed data rate constraint of R bps for each transmission, how many frequency slots N of size W/N should the band be partitioned into to maximize the number of simultaneous transmissions in ...
Nihar Jindal +2 more
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Prefiltered Turbo Equalization With SINR Mismatch
2007 4th International Symposium on Wireless Communication Systems, 2007In this paper, we consider the use of a channel shortening prefilter in conjunction with a turbo equalizer, in order to allow its use with arbitrarily long channel impulse responses. We show that the residual intersymbol interference (ISI), caused by imperfect channel shortening, results in considerable performance loss.
Asri Shaheem +2 more
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Discrete worst-case SINR-maximization
2017 IEEE 17th International Conference on Ubiquitous Wireless Broadband (ICUWB), 2017The maximization of the signal-to-interference-and-noise ratio (SINR) is a common objective for receive beamforming in wireless communications. In this paper, two specifications on this problem are dealt with. Firstly, we consider a beamforming architecture with finite resolution phase-shifters and amplifiers, i.e., the set of feasible beamformers is ...
Johannes Israel, Andreas Fischer 0004
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SINR analysis in persymmetric adaptive processing
2016 IEEE Statistical Signal Processing Workshop (SSP), 2016We study the normalized output signal-to-interference-plus-noise ratio (SINR) of a sample matrix inversion (SMI) beamformer with exploiting a priori information on persymmetric structures in the received signal. An exact expression for the expectation of the normalized output SINR (i.e., average S-INR loss) of the persymmetric SMI beamformer is ...
Jun Liu 0004 +3 more
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