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Index coded PSK modulation over an AWGN broadcast channel, for a given index coding problem (ICP) is studied. For a chosen index code and an arbitrary mapping (of broadcast vectors to PSK signal points), we have derived a decision rule for…

信息论 · 计算机科学 2017-03-10 Divya U. S. , B. Sundar Rajan

This paper studies noisy index coding problems over single-input single-output broadcast channels. The codewords from a chosen index code of length $N$ are transmitted after $2^N$-PSK modulation over an AWGN channel. In "Index Coded PSK…

信息论 · 计算机科学 2023-05-23 Navya Saxena , Anjana A. Mahesh , B. Sundar Rajan

Consider a communication scenario over a noiseless channel where a sender is required to broadcast messages to multiple receivers, each having side information about some messages. In this scenario, the sender can leverage the receivers'…

信息论 · 计算机科学 2017-06-13 Chandra Thapa , Lawrence Ong , Sarah J. Johnson

In this paper we show that the Index Coding problem captures several important properties of the more general Network Coding problem. An instance of the Index Coding problem includes a server that holds a set of information messages…

信息论 · 计算机科学 2008-05-12 Salim El Rouayheb , Alex Sprintson , Costas Georghiades

We study the fundamental problem of index coding under an additional privacy constraint that requires each receiver to learn nothing more about the collection of messages beyond its demanded messages from the server and what is available to…

This letter investigates a new class of index coding problems. One sender broadcasts packets to multiple users, each desiring a subset, by exploiting prior knowledge of linear combinations of packets. We refer to this class of problems as…

信息论 · 计算机科学 2016-11-18 Namyoon Lee , Alexandros G. Dimakis , Robert W. Heath

The groupcast index coding problem is the most general version of the classical index coding problem, where any receiver can demand messages that are also demanded by other receivers. Any groupcast index coding problem is described by its…

信息论 · 计算机科学 2019-01-21 Chinmayananda Arunachala , B. Sundar Rajan

In a superimposed unicast and multicast transmission system, one layer of Successive Interference Cancellation (SIC) is required at each receiver to remove the multicast stream before decoding the unicast stream. In this paper, we show that…

信息论 · 计算机科学 2018-11-22 Yijie Mao , Bruno Clerckx , Victor O. K. Li

The index coding problem is a fundamental transmission problem arising in content distribution and wireless networks. Traditional approach to solve this problem is to find heuristic/ approximation minimum clique partition solution on an…

网络与互联网体系结构 · 计算机科学 2016-11-15 Jalaluddin Qureshi

In this paper, we study the optimal secondary-link beamforming pattern that balances between the SU's throughput and the interference it causes to PUs in MIMO cognitive radio networks. In particular, we aim to maximize the throughput of the…

网络与互联网体系结构 · 计算机科学 2010-08-11 Ying Jun Zhang , Anthony Man-Cho So

Pliable Index CODing (PICOD) is a variant of the Index Coding (IC) problem in which a user is satisfied whenever it can successfully decode any one message that is not in its side information set, as opposed to a fixed pre-determined…

信息论 · 计算机科学 2018-06-14 Tang Liu , Daniela Tuninetti

Inter-cell interference (ICI) is one of the major performance-limiting factors in the context of modern cellular systems. To tackle ICI, coordinated multi-point (CoMP) schemes have been proposed as a key technology for next-generation…

信息论 · 计算机科学 2019-03-29 Hamed Pezeshki , Masoumeh Sadeghi , Martin Haenggi , J. Nicholas Laneman

In this work we study both the index coding with side information (ICSI) problem introduced by Birk and Kol in 1998 and the more general problem of index coding with coded side information (ICCSI), described by Shum et al in 2012. We…

信息论 · 计算机科学 2016-12-13 Eimear Byrne , Marco Calderini

Index coding, or broadcasting with side information, is a network coding problem of most fundamental importance. In this problem, given a directed graph, each vertex represents a user with a need of information, and the neighborhood of each…

信息论 · 计算机科学 2016-05-02 Abhishek Agarwal , Arya Mazumdar

In this paper, new index coding problems are studied, where each receiver has erroneous side information. Although side information is a crucial part of index coding, the existence of erroneous side information has not yet been considered.…

信息论 · 计算机科学 2019-09-19 Jae-Won Kim , Jong-Seon No

This work introduces a hypergraph formulation that generalizes the classical paradigm of Bar-Yossef et al. to the multi-sender index coding (MSIC) setting. Central to the model is a 4-regular side-information hypergraph G, a new adjacency…

信息论 · 计算机科学 2025-12-16 Ali Khalesi , Petros Elia

Ong and Ho developed optimal linear index codes for single uniprior index coding problems (ICPs) by finding a spanning tree for each of the strongly connected components of the corresponding information-flow graphs, following which Thomas…

信息论 · 计算机科学 2024-07-23 Anjana A Mahesh , Charul Rajput , Bobbadi Rupa , B. Sundar Rajan

To reuse the scarce spectrum efficiently, a large full-duplex cellular network with integrated sensing and communication (ISAC) is studied. Monostatic detection at the base station (BS) is considered. At the BS, we receive two signals: the…

信息论 · 计算机科学 2024-05-02 Konpal Shaukat Ali , Roberto Bomfin , Marwa Chafii

This paper proposes a novel achievable scheme for the index problem and applies it to the caching problem. Index coding and caching are noiseless broadcast channel problems where receivers have message side information.In the index coding…

信息论 · 计算机科学 2017-02-24 Kai Wan , Daniela Tuninetti , Pablo Piantanida

In Index coding there is a single sender with multiple messages and multiple receivers each wanting a different set of messages and knowing a different set of messages a priori. The Index Coding problem is to identify the minimum number of…

信息论 · 计算机科学 2015-04-21 Kavitha. R , B. Sundar Rajan