Notes on Globecom 2015

Monday 12/7/2015 

Morning session 

• Suppression of Analog Self-Interference Canceller Nonlinearities in MIMO Full Duplex 
• Use of nonlinear modeling to cancel nonlinear behavior of the RF chain
• Receive Spatial Modulation (Marco Di Renzo) 
• New ideas for MIMO Broadcast Channel 
• A 60GHz LOS MIMO Backhaul Design Combining Spatial Multiplexing and Beamforming for a 100Gbps Throughput (Gerhard Fettweis' group)
• Deterministic Spatial Multiplexing (Antenna spacing determined by the distance between TX and RX)

Noon session (mmWave)

• Adaptive One-bit Compressive Sensing with Application to Low-Precision Receivers at mmWave (joint work University of Vigo, Spain and Robert Heath)
• Compressive sensing for estimating channel of 1-bit receiver

Afternoon session (Massive MIMO)

• Exploiting the Tolerance of Massive MIMO to Incomplete CSI for Low-Complexity Transmission (UCL)
• Exploit antenna correlation by training a subset of antennas and interpolate missing information.  (Perhaps CS based schemes can be used?)
• Downlink Performance and User Scheduling of HetNet with Large-Scale Antenna Arrays (University of Victoria)
• Lower bound analysis on Hetnet.  (Useful technique)
• Large System Analysis of Base Station Cooperation in the Downlink (Luca Sanguinetti, Couillet and Debbah)
• New RMT results for DL BS cooperation with imperfect CSI 

Tuesday 12/8/2015 

Morning session (Massive MIMO)

• Polynomial-Expansion Multi-Cell Aware Detector for Uplink Massive MIMO Systems with Imperfect CSI (Germany)
• replacing matrix inverse with polynomial expansion
• Joint Use of H-inf Criterion in Channel Estimation and Precoding to Mitigate Pilot Contamination in Massive MIMO Systems (University of Northeastern, China)
• H-inf Criterion used to design CE and Precoding (minimax like criterion, minimize worst case penalty)
• Location-Aided Pilot Contamination Elimination for Massive MIMO Systems (Chalmers, Sweden)
• estimate AoA and AS to compute Covariance matrix.
• Data-Assisted Massive MIMO Uplink Transmission with Large Backhaul Cooperation Delay: Scheme Design and System-Level Analysis (Very good analysis)
• Successively use data to improve channel estimation.   
• Develop network model with fixed BS location using stochastic geometry
• Shifted Zadoff Chu sequence used (do not reuse pilots)

Noon session 

• Maximal Ratio Transmission in Wireless Poisson Networks under Spatially Correlated Fading Channels
• Stochastic geometry.  Correlated channel.  Spatial correlation is SINR dependent.
• Performance Analysis of Single-Carrier Modulation with Correlated Large-Scale Antennas (Geoffrey Li, Georgia Tech) 
• Propose SC over OFDM in massive MIMO.  No equalizer under the condition of i.i.d channel.

Afternoon session

• Multi-switch for antenna selection in massive MIMO
• binary switching in antenna selection (have small loss in capacity)
• A Multi-cell MMSE Precoder for Massive MIMO Systems and New Large System Analysis (Emil Bjornson)  Good analysis
• Multicell MMSE precoder for TDD massive MIMO using idea of Pilot reuse.  Exploit UL/DL duality to come up with precoder design that spans B directions only.  
• Harmonized Cellular and Distributed Massive MIMO: Load Balancing and Scheduling (DOCOMO)
• Distributed massive MIMO with Hetnet, scheduling using blanking etc.  
• research has industry knowledge