Results 151 to 160 of about 196,265 (325)
Cooperative MIMO Communication at Wireless Sensor Network: An Error Correcting Code Approach
Cooperative communication in wireless sensor network (WSN) explores the energy efficient wireless communication schemes between multiple sensors and data gathering node (DGN) by exploiting multiple input multiple output (MIMO) and multiple input single ...
Mohammad Rakibul Islam, Young Shin Han
doaj +1 more source
We generalize the notion of cyclic codes by using generator polynomials in (non commutative) skew polynomial rings. Since skew polynomial rings are left and right euclidean, the obtained codes share most properties of cyclic codes. Since there are much more skew-cyclic codes, this new class of codes allows to systematically search for codes with good ...
arxiv
ABSTRACT Introduction War, displacement, and relocation are traumatic events affecting mental health and require professional attention. As the war in Ukraine continues, the mental health needs of refugees persist. Aim To explore Ukrainian refugees' perceived mental health, self‐stigma related to psychological care‐seeking, and mental health services ...
Rada Artzi‐Medvedik+4 more
wiley +1 more source
Low-density parity-check codes based on finite geometries: a rediscovery and new results [PDF]
Y. Kou, Shu Lin, M.P.C. Fossorier
openalex +1 more source
Abstract Over the past decade, the Nigerian government has sought to leverage Artificial Intelligence (AI) to drive socio‐economic transformation and improve the welfare of its citizenry. Recent initiatives, such as the establishment of the National Centre for AI and Robotics (NCAIR) and the development of several strategic AI policies, highlight the ...
Morris K. Odeh
wiley +1 more source
New MDS Euclidean and Hermitian self-dual codes over finite fields [PDF]
In this paper, we construct MDS Euclidean self-dual codes which are extended cyclic duadic codes. And we obtain many new MDS Euclidean self-dual codes. We also construct MDS Hermitian self-dual codes from generalized Reed-Solomon codes and constacyclic codes.
arxiv
A recently developed theory suggests that network coding is a generalization of source coding and channel coding and thus yields a significant performance improvement in terms of throughput and spatial diversity.
Bing Du, Jun Zhang
doaj +1 more source
Completely regular codes by concatenating Hamming codes [PDF]
We construct new families of completely regular codes by concatenation methods. By combining parity check matrices of cyclic Hamming codes, we obtain families of completely regular codes. In all cases, we compute the intersection array of these codes. We also study when the extension of these codes gives completely regular codes.
arxiv
PERBANDINGAN KINERJA LDPC PADA KANAL AWGN DENGAN MODULASI QPSK DAN BPSK [PDF]
Low Density Parity Check (LDPC) codes are one class of linear block coding techniques. The name comes from the characteristics of the LDPC parity check matrix was that only contain a little bit of '1 'if compared with the number of bits of '0'.
ILMIAWAN, SHAHIH, Moegiharto, Yoedy
core
Fighting over nation or state: States, communal demography, and the type of ethnic civil war
Abstract We recognise nationalist and centre‐seeking ethnic civil wars as distinct types of conflict and draw on key ideas from political sociology to make hypotheses about the causes of each. First, we argue that the character of states shapes antistate actors in ways that channel ethnic conflict in different ways, with pluralist states promoting ...
Matthew Lange, Tay Jeong
wiley +1 more source