613 citations · 626 across the 10 of their papers we have counts for
10 papers
Performance Analysis of Indoor VLC Network with Secure Downlink NOMA for Body Blockage Model
Tianji Shen, Vamoua Yachongka, Yuto Hama +1
In this work, we investigate the performance of indoor visible light communication (VLC) networks based on power domain non-orthogonal multiple access (NOMA) for mobile devices, wh…
Beware of Pickpockets: A Practical Attack against Blocking Cards
Marco Alecci, Luca Attanasio, Alessandro Brighente +4
Today, we rely on contactless smart cards to perform several critical operations (e.g., payments and accessing buildings). Attacking smart cards can have severe consequences, such…
Outer Bounds on the CEO Problem with Privacy Constraints
Vamoua Yachongka, Hideki Yagi, Hideki Ochiai
We investigate the rate-distortion-leakage region of the Chief Executive Officer (CEO) problem, considering the presence of a passive eavesdropper and privacy constraints. We start…
On Rate-Splitting With Non-unique Decoding In Multi-cell Massive MIMO Systems
Meysam Shahrbaf Motlagh, Subhajit Majhi, Patrick Mitran +1
We consider the downlink of a multi-cell massive MIMO system suffering from asymptotic rate saturation due to pilot contamination. As opposed to treating pilot contamination interf…
Secret-Key Agreement Using Physical Identifiers for Degraded and Less Noisy Authentication Channels
Vamoua Yachongka, Hideki Yagi, Hideki Ochiai
Secret-key agreement based on biometric or physical identifiers is a promising security protocol for authenticating users or devices with small chips due to its lightweight securit…
A New Polar Code Design Based on Reciprocal Channel Approximation
Hideki Ochiai, Kosuke Ikeya, Patrick Mitran
This paper revisits polar code design for a binary-input additive white Gaussian noise (BI-AWGN) channel when successive cancellation (SC) decoding is applied at the receiver. We f…
On Downlink Interference Decoding In Multi-Cell Massive MIMO Systems
Meysam Shahrbaf Motlagh, Subhajit Majhi, Patrick Mitran +1
In this paper, the downlink of a multi-cell massive MIMO system is considered where the channel state information (CSI) is estimated via pilot symbols that are orthogonal in a cell…
Capacity-Approaching Polar Codes with Long Codewords and Successive Cancellation Decoding Based on Improved Gaussian Approximation
Hideki Ochiai, Patrick Mitran, H. Vincent Poor
This paper focuses on an improved Gaussian approximation (GA) based construction of polar codes with successive cancellation (SC) decoding over an additive white Gaussian noise (AW…
A Generalized MMSE Detection with Reduced Complexity for Spatially Multiplexed MIMO Signals
Makoto Tanahashi, Hideki Ochiai
In multiple-input multiple-output (MIMO) spatially multiplexing (SM) systems, achievable error rate performance is determined by signal detection strategy. The optimal maximum-like…
Collaborative Beamforming for Distributed Wireless Ad Hoc Sensor Networks
Hideki Ochiai, Patrick Mitran, H. Vincent Poor +1
The performance of collaborative beamforming is analyzed using the theory of random arrays. The statistical average and distribution of the beampattern of randomly generated phased…