222 citations · 844 across the 56 of their papers we have counts for
10 papers · 1 filter
On the Coded Caching Delivery Design over Wireless Networks
Lei Zheng, Qifa Yan, Qingchun Chen +1
Coded caching scheme is a promising technique to migrate the network burden in peak hours, which attains more prominent gains than the uncoded caching. The coded caching scheme can…
The Optimal Placement Delivery Arrays
Minquan Cheng, Jing Jiang, Qifa Yan +2
In wireless networks, coded caching is an effective technique to reduce network congestion during peak traffic times. Recently, a new concept called placement delivery array (PDA)…
An Efficient Optimal Algorithm for the Successive Minima Problem
Jinming Wen, Lanping Li, Xiaohu Tang +1
In many applications including integer-forcing linear multiple-input and multiple-output (MIMO) receiver design, one needs to solve a successive minima problem (SMP) on an -dime…
Placement Delivery Array Design through Strong Edge Coloring of Bipartite Graphs
Qifa Yan, Xiaohu Tang, Qingchun Chen +1
The technique of coded caching proposed by Madddah-Ali and Niesen is a promising approach to alleviate the load of networks during busy times. Recently, placement delivery array (P…
Optimal Locally Repairable Systematic Codes Based on Packings
Han Cai, Minquan Cheng, Cuiling Fan +1
Locally repairable codes are desirable for distributed storage systems to improve the repair efficiency. In this paper, we first build a bridge between locally repairable code and…
On the Gap Between Decentralized and Centralized Coded Caching Schemes
Qifa Yan, Xiaohu Tang, Qingchun Chen
Caching is a promising solution to satisfy the ongoing explosive demands for multi-media traffics. Recently, Maddah-Ali and Niesen proposed both centralized and de-centralized code…
Sharp Sufficient Conditions for Stable Recovery of Block Sparse Signals by Block Orthogonal Matching Pursuit
Jinming Wen, Zhengchun Zhou, Zilong Liu +2
In this paper, we use the block orthogonal matching pursuit (BOMP) algorithm to recover block sparse signals $\x$ from measurements $\y=\A\x+\v$, where $\v$ is an -bounded…
A Novel Compressive Sensing based Enhanced Multiplexing Scheme for MIMO System
Chanzi Liu, Qingchun Chen, Xiaohu Tang
A novel compressive-sensing based signal multiplexing scheme is proposed in this paper to further improve the multiplexing gain for multiple input multiple output (MIMO) system. At…
A Generic Transformation to Enable Optimal Repair in MDS Codes for Distributed Storage Systems
Jie Li, Xiaohu Tang, Chao Tian
We propose a generic transformation that can convert any nonbinary maximum distance separable (MDS) code into another MDS code over the same field such that 1)…
A Novel Sufficient Condition for Generalized Orthogonal Matching Pursuit
Jinming Wen, Zhengchun Zhou, Dongfang Li +1
Generalized orthogonal matching pursuit (gOMP), also called orthogonal multi-matching pursuit, is an extension of OMP in the sense that indices are identified per iteratio…