Changho Suh

Publications
Influence

A Survey on Network Codes for Distributed Storage

A. Dimakis, K. Ramchandran, Y. Wu, Changho Suh
Computer Science, Mathematics
Proceedings of the IEEE
26 April 2010

This paper provides an overview of the research results on this topic. Expand

Downlink Interference Alignment

Changho Suh, M. Ho, D. Tse
Computer Science
IEEE Transactions on Communications
1 December 2010

We develop an interference alignment (IA) technique for a downlink cellular system. Expand

Feedback Capacity of the Gaussian Interference Channel to Within 2 Bits

Changho Suh, D. Tse
Mathematics, Computer Science
IEEE Transactions on Information Theory
18 May 2010

We characterize the capacity region to within 2 bits/s/Hz and the symmetric capacity to within 1 bit/S/Hz for the two-user Gaussian interference channel (IC) with feedback. Expand

Exact-Repair MDS Code Construction Using Interference Alignment

Changho Suh, K. Ramchandran
Mathematics, Computer Science
IEEE Transactions on Information Theory
1 March 2011

In this paper, we describe (n, k, d) Exact-Repair MDS codes, which allow for any failed node to be repaired exactly with access to d survivor nodes, where k ≤ d ≤ n-1. Expand

Resource Allocation for Multicast Services in Multicarrier Wireless Communications

Changho Suh, Jeonghoon Mo
Computer Science
Proceedings IEEE INFOCOM . 25TH IEEE…
23 April 2006

We consider a multicast resource allocation problem for the downlink in OFDM-based wireless cellular network systems. Expand

Asymptotic Interference Alignment for Optimal Repair of MDS Codes in Distributed Storage

Viveck R. Cadambe, S. Jafar, H. Maleki, K. Ramchandran, Changho Suh
Mathematics, Computer Science
IEEE Transactions on Information Theory
1 May 2013

The high repair bandwidth cost of (<i>n</i>,<i>k</i>) maximum distance separable (MDS) erasure codes has motivated a new class of codes that can reduce repair bandwidth over that of conventional MDS codes. Expand

Downlink Interference Alignment

Changho Suh, M. Ho, D. Tse
Computer Science, Mathematics
IEEE Global Telecommunications Conference…
19 March 2010

We develop an interference alignment (IA) technique for a downlink cellular system. Expand

High-dimensional coded matrix multiplication

Kangwook Lee, Changho Suh, K. Ramchandran
Computer Science, Mathematics
IEEE International Symposium on Information…
1 June 2017

We study coded computation involving large matrix multiplication where both matrices are large, and propose a new coded computation scheme, which we call product-coded matrix multiplication, which achieves the best run-time performance. Expand

Spectral MLE: Top-K Rank Aggregation from Pairwise Comparisons

Y. Chen, Changho Suh
Computer Science, Mathematics
ICML
27 April 2015

This paper explores the preference-based top-$K$ rank aggregation problem. Suppose that a collection of items is repeatedly compared in pairs, and one wishes to recover a consistent ordering that… Expand

Linear Degrees of Freedom of the $X$ -Channel With Delayed CSIT

Sina Lashgari, A. Avestimehr, Changho Suh
Mathematics, Computer Science
IEEE Transactions on Information Theory
3 September 2013

We establish the degrees of freedom (DoF) of the two-user X-channel with delayed channel knowledge at transmitters [i.e., delayed channel state information at the transmitters (CSIT)], under the assumption of linear encoding strategies, to be 6/5. Expand

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