Results 41 to 50 of about 21,832,942 (335)
Achieving the Uniform Rate Region of General Multiple Access Channels by Polar Coding [PDF]
, 2016 We consider the problem of polar coding for transmission over $m$-user multiple access channels. In the proposed scheme, all users encode their messages using a polar encoder, while a multi-user successive cancellation decoder is deployed at the receiver.
El-Khamy, Mostafa +3 more
core +1 more source
Convergence in West German Regional Unemployment Rates [PDF]
German Economic Review, 2007 AbstractDifferences in regional unemployment rates are often used to describe regional economic inequality. This paper asks whether changes in regional unemployment differences in West Germany are persistent over time. Understanding the persistency of regional unemployment differences helps us to assess how effective regional policy can be.
Falko Juessen, Christian Bayer
openaire +6 more sources
The impact of migration on demographic growth and the birth rate in the Russian regions
Наука. Культура. Общество, 2022 The regional features of the impact of migration processes on demographic dynamics and fertility in the Russian Federation are considered in the article. There were identified four groups of regions on dynamics of total fertility rate change depending on
Anatoly V. Topilin
doaj
Achievable rate region for three user discrete broadcast channel based on coset codes [PDF]
, 2015 We present an achievable rate region for the general three user discrete memoryless broadcast channel, based on nested coset codes. We characterize 3-to-1 discrete broadcast channels, a class of broadcast channels for which the best known coding ...
Padakandla, Arun, Pradhan, S. Sandeep
core +1 more source
The Service Rate Region Polytope
SIAM Journal on Applied Algebra and GeometryWe investigate the properties of a family of polytopes that naturally arise in connection with a problem in distributed data storage, namely service rate region polytopes. The service rate region of a distributed coded system describes the data access requests that the underlying system can support. In this paper, we study the polytope structure of the
Alfarano, Gianira N. +3 more
openaire +4 more sources
Geographic features of road traffic injury in the European region
Journal of Education, Health and Sport, 2017 The number of accidents on the roads, and the death rate from injuries received in the accident, in Europe, much lower than the world at large. However, the problem remains acute and has significant geographical differences and peculiarities, a view ...
Anatolii Kornus +2 more
doaj +3 more sources
Two-Way Multiple Relays Channel: Achievable Rate Region and Optimal Resources
Advances in Electrical and Electronic Engineering, 2016 This paper considers a communication model containing two users that exchange their information with the help of multiple parallel relay nodes. To avoid interference at these common nodes, two users are required to transmit over the different frequency ...
Zouhair Al-Qudah, Wael Abu Shehab
doaj +1 more source
Rate Region of the (4,3,3) Exact-Repair Regenerating Codes
, 2013 Exact-repair regenerating codes are considered for the case (n,k,d)=(4,3,3), for which a complete characterization of the rate region is provided. This characterization answers in the affirmative the open question whether there exists a non-vanishing gap
Tian, Chao
core +1 more source
Heliyon, 2022 Background: A longitudinal study was conducted in six intensive and three semi-intensive poultry farms in Shebedino and Dale districts of Sidama Region, Ethiopia from November 2018 to May 2019. The objectives of the study were to estimate incidence rates
Gizachew Hailegebreal +4 more
doaj +1 more source
Characterization of Rate Region in Interference Channels with Constrained Power
, 2006 In this paper, an $n$-user Gaussian interference channel, where the power of the transmitters are subject to some upper-bounds is studied. We obtain a closed-form expression for the rate region of such a channel based on the Perron-Frobenius theorem ...
Ebrahimi, Masoud +2 more
core +3 more sources