Publications by Suhas Diggavi | EPFL Graph Search

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A Deterministic Approach to Wireless Network Error Correction

Suhas Diggavi

In this paper we consider communication between two special nodes ("source" and "destination") in a wireless relay network, which has malfunctioning or malicious nodes (inserting errors). We develop the model for wireless network communication in the prese ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

On Noise Insertion Strategies for Wireless Network Secrecy

Emre Telatar, Suhas Diggavi, Etienne Perron

We provide lower and upper bounds on the optimal rate for reliable and secret transmission of a message from one node to another in an arbitrary wireless network with deterministic signal interaction. Certain relay nodes are allowed to insert noise into th ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Optimal Rate-Reliability-Delay Tradeoff in Networks with Composite Links

Suhas Diggavi

Networks need to accommodate diverse applications with different Quality-of-Service (QoS) requirements. New ideas at the physical layer are being developed for this purpose, such as diversity embedded coding, which is a technique that combines high rates w ...

Institute of Electrical and Electronics Engineers2009

Lossy Source Coding with Gaussian or Erased Side-Information

Emre Telatar, Suhas Diggavi, Etienne Perron

In this paper we find properties that are shared between two seemingly unrelated lossy source coding setups with side information. The first setup is when the source and side information are jointly Gaussian and the distortion measure is quadratic. The sec ...

2009

On the capacity of multisource non-coherent network coding

Christina Fragouli, Suhas Diggavi, Mahdi Jafari Siavoshani

We consider multisource non-coherent network coding, where multiple sources send information to one or multiple receivers. We prove that this is equivalent to a ldquosubspacerdquo channel, that takes subspaces as inputs and outputs. We then show that the r ...

2009

Code Construction for Multiple Sources Network Coding

Christina Fragouli, Suhas Diggavi

In several wireless applications multiple sources transmit information to one or more receivers, many times over unknown topologies. This is especially so in mobile networks where learning the topology may have prohibitive complexity. Network coding techni ...

Acm Order Department, P O Box 64145, Baltimore, Md 21264 Usa2009

Lossy Source Coding with Gaussian or Erased Side-Information

Emre Telatar, Suhas Diggavi, Etienne Perron

In this paper we find properties that are shared between two seemingly unrelated lossy source coding setups with side-information. The first setup is when the source and side-information are jointly Gaussian and the distortion measure is quadratic. The sec ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

On Cooperative Wireless Network Secrecy

Emre Telatar, Suhas Diggavi, Etienne Perron

Given that wireless communication occurs in a shared and inherently broadcast medium, the transmissions are vulnerable to undesired eavesdropping. This occurs even when a point-to-point communication is sought, and hence a fundamental question is whether w ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Suhas Diggavi

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A Deterministic Approach to Wireless Network Error Correction

On Noise Insertion Strategies for Wireless Network Secrecy

Optimal Rate-Reliability-Delay Tradeoff in Networks with Composite Links

Lossy Source Coding with Gaussian or Erased Side-Information

Approximating the Gaussian Multiple Description Rate Region Under Symmetric Distortion

Network coding for undirected information exchange

On the capacity of multisource non-coherent network coding

Code Construction for Multiple Sources Network Coding

Lossy Source Coding with Gaussian or Erased Side-Information

On Cooperative Wireless Network Secrecy

A Deterministic Approach to Wireless Network Error Correction

Optimal Rate-Reliability-Delay Tradeoff in Networks with Composite Links

On Noise Insertion Strategies for Wireless Network Secrecy

Approximating the Gaussian Multiple Description Rate Region Under Symmetric Distortion

On the capacity of multisource non-coherent network coding

Lossy Source Coding with Gaussian or Erased Side-Information

On Cooperative Wireless Network Secrecy

Lossy Source Coding with Gaussian or Erased Side-Information

Code Construction for Multiple Sources Network Coding

Network coding for undirected information exchange