Patent
Array receiver with subarray selection
TLDR
In this article, the selection of the subset of signals which should be used for a particular user is made on the basis of measurements of potential performance of the receiver with each subset, combined, rather than of each individual signal.Abstract:
An array antenna system comprising an array of antenna elements and a receiver which uses a subset of the signals from the antenna elements, the selection of the subset of signals which should be used for a particular user is made on the basis of measurements of potential performance of the receiver with each subset of signals, combined, rather than of each individual signal.read more
Citations
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Patent
System and method for channel-adaptive antenna selection
TL;DR: In this article, a method that selects a subset of receive antennas of a receiver to receive a transmitted RF signal may include, for example, one or more of the following: establishing possible subsets of the receive antennas; determining sets of channel parameter statistics corresponding to the possible sub-sets of the receiving antennas; computing output bit error rates of the receiver, each output bits error rate being computed based on at least one set of channel parameters; selecting a particular possible subset of the received antennas based upon a criterion predicated on the computed output BERs; and connecting one or
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Method of and device for antennae diversity switching
Aryan Saed,Phil Guillemette +1 more
TL;DR: In this article, the authors proposed a method of and device for switching between antennae in communication with a diversity receiver, each of the antennae receiving signals transmitted from a single source.
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TL;DR: In this article, a cellular communication system comprising a plurality of geographically spaced base stations (2) each comprising an antenna arrangement (4, 6, 8) per base station sector, each of which antenna element has an antenna element for generating an array of narrow beams (10, 12, 14) covering the sector.
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Method and system for multiple antenna communications using multiple transmission modes, related apparatus and computer program product
TL;DR: In this article, a system for diversity processing a signal (INPUT) propagated via two diversity antennas (1, 2) includes: respective propagation paths for propagating two replicas of the signal (inPUT), these propagation paths being coupled to the two diversity antenna pairs, so that the replicas are propagated by different antennas, a time variable delay element (16) for subjecting at least one of the replicated signals to a time-varying delay, and a level adjusting element, such as an asymmetric 15 splitter, to produce a level imbalance
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Advanced backhaul services
Kevin J. Negus,James A. Proctor +1 more
TL;DR: In this paper, the authors proposed a hierarchical set of interference protection mechanisms for members of each tier of service, including point-to-point and multi-point data links for any communication application including wireless backhaul applications.
References
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Journal ArticleDOI
The impact of antenna diversity on the capacity of wireless communication systems
TL;DR: In this paper, the authors show that a significant increase in system capacity can be achieved by the use of spatial diversity (multiple antennas), and optimum combining, for a broad class of interference-dominated wireless systems including mobile, personal communications, and wireless PBX/LAN networks.
Patent
Spatial division multiple access wireless communication systems
Roy Richard H,Bjorn Ottersten +1 more
TL;DR: In this paper, a method and apparatus for increasing the capacity and quality of wireless communication between a plurality of remote users and a base station is disclosed, where measurements from an array of receiving antennas at the base station are calculated and used to obtain the positions and velocities of the users.
Journal ArticleDOI
Comparison of diversity combining techniques for Rayleigh-fading channels
T. Eng,Ning Kong,L.B. Milstein +2 more
TL;DR: Numerical results indicate that SC2 and SC3 significantly enhances the bit-error rate (BER) performance relative to that achievable with SC, and under certain conditions approaches the performance achieved by MRC or EGG.
Proceedings ArticleDOI
Selecting an optimal set of transmit antennas for a low rank matrix channel
TL;DR: A criterion for selecting an optimum set of transmit antennas is developed and it is shown that the judicious use of fewer transmit antennas when the channel matrix is ill-conditioned can increase system capacity.