Exploiting interference locality in coordinated multi-point transmission systems
Xinyu Zhang,Mohammad A. Khojastepour,Karthikeyan Sundaresan,Sampath Rangarajan,Kang G. Shin +4 more
- 10 Jun 2012
- pp 4207-4211
TL;DR: DIAC realizes the localized coordination by integrating interference cancellation and distributed interference alignment, and can be applied to both the uplink and downlink of multi-cell wireless networks.
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Abstract: Coordinated Multi-Point (CoMP) transmission is emerging as a concept that can substantially suppress interference, thus improving the capacity of multi-cell wireless networks. However, existing CoMP techniques either require sharing of data and channel state information (CSI) for all links in the network, or have limited capability of interference suppression. In this paper, we propose distributed interference alignment and cancellation (DIAC) to overcome these limitations. DIAC builds on a key intuition of interference locality — since each link is interfered with a limited number of neighboring links, it is sufficient to coordinate with those strong interferers and ignore others, in order to bound the overhead in CoMP. DIAC realizes the localized coordination by integrating interference cancellation and distributed interference alignment, and can be applied to both the uplink and downlink of multi-cell wireless networks. We validate DIAC using both model-driven and trace-based simulation where the traces are collected by implementing a MIMO-OFDM channel estimator on a software radio platform. Our experiments show that DIAC can substantially improve the degrees of freedom in multi-cell wireless networks.
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Citations
Coordinated Multi-Point Transmissions Based on Interference Alignment and Neutralization
TL;DR: The proposed IA- and IN-based CoMP (IAN-CoMP) mechanism can achieve effective interference cancellation and suppression by exploiting limited and flexible collaboration at the BS side and can make a flexible tradeoff between the cooperation overhead and the system’s achievable degrees of freedom (DoFs).
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DEVS-based modeling of coordinated multipoint techniques for LTE-advanced
Misagh Tavanpour,Gabriel Wainer,Gary Boudreau,Ronald Casselman +3 more
- 07 Apr 2013
TL;DR: The Discrete Event System Specification (DEVS) formalism is used to model a mobile network using two approaches of CoMP: namely, coordinated scheduling/beamforming and joint processing and confirms that these approaches decrease the interference level resulting in cell edge users experiencing higher level of performance.
Shared segmented upload in mobile networks using coordinated multipoint
Misagh Tavanpour,Mohammad Moallemi,Gabriel Wainer,Jan Mikhail,Gary Boudreau,Ronald Casselman +5 more
- 06 Jul 2014
TL;DR: Shared Segmented Upload (SSU) is introduced, a novel method for uploading large files from a UE to multiple BSs in a CoMP communication sce-nario using the Discrete Event System Specification (DEVS) formalism to model a mobile network.
Coverage and performance of stratospheric balloons wireless networks
Jean-Marc Kelif
- 01 Sep 2016
TL;DR: This paper analyzes the performance of wireless networks by using stratospheric balloons equipped by base stations and establishes the cumulative distribution function (CDF) of the SINR, since it allows an accurate evaluation of the performance and the quality of service (QoS).
5
Data Upload in LTE-A Mobile Networks by Using Shared Segmented Upload
Misagh Tavanpour,Jan Mikhail,Mohammad Moallemi,Gabriel Wainer,Gary Boudreau,Ronald Casselman +5 more
TL;DR: Shared Segmented Upload (SSU) is presented, a novel method for uploading large files from User Equipment (UE) to multiple BSs in a CoMP communication scenario using Discrete EVent System Specification (DEVS) formalism.
4
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Coordinated multipoint transmission/reception techniques for LTE-advanced [Coordinated and Distributed MIMO]
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