Now showing items 1-20 of 22

    • Challenges and some new directions in channel coding 

      Arikan, E.; Ul Hassan, N.; Lentmaier, M.; Montorsi, G.; Sayir, J. (Korean Institute of Communication Sciences, 2015)
      Three areas of ongoing research in channel coding are surveyed, and recent developments are presented in each area: Spatially coupled low-density parity-check (LDPC) codes, nonbinary LDPC codes, and polar coding.
    • Channel combining and splitting for cutoff rate improvement 

      Arikan, E. (Institute of Electrical and Electronics Engineers, 2006)
      The cutoff rate R0(W) of a discrete memoryless channel (DMC) W is often used as a figure of merit alongside the channel capacity C(W). If a channel W is split into two possibly correlated subchannels W1, W2, the capacity ...
    • Channel polarization: a method for constructing capacity-achieving codes for symmetric binary-input memoryless channels 

      Arikan, E. (IEEE, 2009)
      A method is proposed, called channel polarization, to construct code sequences that achieve the symmetric capacity I(W) of any given binary-input discrete memoryless channel (B-DMC) W. The symmetric capacity is the highest ...
    • Guessing subject to distortion 

      Arikan, E.; Merhav, N. (Institute of Electrical and Electronics Engineers, 1998-05)
      We investigate the problem of guessing a random vector X within distortion level D. Our aim is to characterize the best attainable performance in the sense of minimizing, in some probabilistic sense, the number of required ...
    • Guest editorial recent advances in capacity approaching codes 

      Arikan, E.; Costello, D. J.; Kliewer, J.; Lentmaier, M.; Siegel, P.; Urbanke, R.; Pursley, M. (Institute of Electrical and Electronics Engineers Inc., 2016)
    • Heterogeneous and Opportunistic Wireless Networks 

      Pérez-Romero, J.; Palazzo, S.; Galluccio, L.; Morabito, G.; Leonardi, A.; Antón-Haro, C.; Arikan, E.; Asheid, G.; Belleville, M.; Dagres, I.; Dardari, D.; Dohler, M.; Eldar, Y.; Gezici, Sinan; Giupponi, L.; Guillemot, C.; Iosifidis, G.; Kieffer, M.; Kountouris, M.; Luise, M.; Masera, G.; Matamoros, J.; Miliou, N.; Morche, D.; Moy, C.; Navarro, C.; Olmo, G.; Palicot, J.; Pedone, R.; Ramakrishnan, V.; Shamai, S.; Tyczka, P.; Vandendorpe, L.; Vanelli-Coralli, A.; Weidmann, C.; Zalonis, A. (Springer-Verlag Italia s.r.l., 2012)
      Recent years have witnessed the evolution of a large plethora of wireless technologies with different characteristics, as a response of the operators' and users' needs in terms of an efficient and ubiquitous delivery of ...
    • Hierarchical guessing with a fidelity criterion 

      Merhav, N.; Roth, R. M.; Arikan, E. (Institute of Electrical and Electronics Engineers, 1999)
      In an earlier paper, we studied the problem of guessing a random vector X within distortion D, and characterized the best attainable exponent E(D, p) of the pth moment of the number of required guesses G(X) until the ...
    • An inequality on guessing and its application to sequential decoding 

      Arikan, E. (Institute of Electrical and Electronics Engineers, 1996-01)
      Let (X,Y) be a pair of discrete random variables with X taking one of M possible values, Suppose the value of X is to be determined, given the value of Y, by asking questions of the form "Is X equal to x?" until the answer ...
    • Joint source-channel coding and guessing with application to sequential decoding 

      Arikan, E.; Merhav, N. (Institute of Electrical and Electronics Engineers, 1998-09)
      We extend our earlier work on guessing subject to distortion to the joint source-channel coding context. We consider a system in which there is a source connected to a destination via a channel and the goal is to reconstruct ...
    • On the reliability exponent of the exponential timing channel 

      Arikan, E. (IEEE, 2002)
      We determine the reliability exponent E(R) of the Anantharam-Verdú exponential server timing channel with service rate μ for all rates R between a critical rate R c = (μ/4) log 2 and the channel capacity C = e -1μ. For ...
    • Rate-distortion optimization for stereoscopic video streaming with unequal error protection 

      Tan, A. S.; Aksay, A.; Akar, G. B.; Arikan, E. (SpringerOpen, 2009)
      We consider an error-resilient stereoscopic streaming system that uses an H.264-based multiview video codec and a rateless Raptor code for recovery from packet losses. One aim of the present work is to suggest a heuristic ...
    • A scheme for handling connectionless services in connection-oriented networks 

      Abdelati, M.; Arikan, E. (The Institute of Electronics, Information and Communication Engineers, 1997-10-25)
      In this work we propose a pricing scheme which serves as an instrument for managing connectionless services in connection-oriented communication networks. The scheme is able to allocate network bandwidth in a Pareto-optimal ...
    • Sequential Decoding of Low-Density Parity-Check Codes by Adaptive Reordering of Parity Checks 

      Radosavljevic, B.; Arikan, E.; Hajek, B. (1992)
      Decoding algorithms are investigated in which unpruned codeword trees are generated from an ordered list of parity checks. The order is computed from the received message, and low-density parity-check codes are used to ...
    • Serially concatenated polar codes 

      Arikan, E. (Institute of Electrical and Electronics Engineers, 2018)
      Simulation results show that the performance of polar codes is improved vastly by using polar codes as inner codes in serially concatenated coding schemes. Furthermore, this performance improvement is achieved using a ...
    • The Shannon cipher system with a guessing wiretapper 

      Merhav, N.; Arikan, E. (Institute of Electrical and Electronics Engineers, 1999-09)
      The Shannon theory of cipher systems is combined with recent work on guessing values of random variables. The security of encryption systems is measured in terms of moments of the number of guesses needed for the wiretapper ...
    • Signal combining in LINC amplifier using Alamouti codes 

      Ali S.; Adebisi, B.; Markarian, G.; Arikan, E. (IEEE, 2010-09-09)
      The linear amplification with nonlinear components (LINC) amplification method is discussed. A novel way of combing the equi-magnitude signals is presented. This method uses the space time 2 × 1 Alamouti code for combining ...
    • Signal recovery with cost-constrained measurements 

      Özçelikkale, A.; Özaktaş, Haldun M.; Arikan, E. (IEE, 2010-03-22)
      We are concerned with the problem of optimally measuring an accessible signal under a total cost constraint, in order to estimate a signal which is not directly accessible. An important aspect of our formulation is the ...
    • Special Issue on Advances in Channel Coding 

      Arikan, E.; Lentmaier, M.; Montorsi, G. (Korean Institute of Communication Sciences, 2015)
      Since the invention of turbo codes in 1993 there has been an enormous interest and progress in the field of capacity approaching code constructions. Many classical constructions have been replaced by newer, better performing ...
    • Systematic polar coding 

      Arikan, E. (IEEE, 2011)
      Polar codes were originally introduced as a class of non-systematic linear block codes. This paper gives encoding and decoding methods for systematic polar coding that preserve the low-complexity nature of non-systematic ...
    • An Upper Bound on the Cutoff Rate of Sequential Decoding 

      Arikan, E. (1988)
      An upper bound is given on the cutoff rate of discrete memoryless channels. This upper bound, which coincides with a known lower bound, determines the cutoff rate, and settles a long-standing open problem. © 1988 IEEE