Wireless communications over rapidly time-varying channels
By: edited by Franz Hlawatsch, Gerald Matz
Edition: 1st ed.
Publisher: Academic Press
Published: 2011
Place of publication: Oxford, UK; Burlington, MA
Language: eng
Number of pages: 425
ISBN-13: 9780123744838
Subjects: Wireless communication systems; Time-series analysis
Notes: Includes bibliographical references and index.
Table of contents: title: Fundamentals of time-varying communication channels. Introduction ; The physics of time-varying channels ; Deterministic description ; Stochastic description ; Underspread channels ; Parsimonious channel models ; Measurement ; Conclusion; title: Information theory of underspread WSSUS channels. The role of a system model ; A discretized system model ; The large-bandwidth regime : diagonalized I/O relation ; The large bandwidth regime : I/O relation with interference ; The high-SNR regime ; Conclusions; title: Algebraic coding for fast fading channels. Introduction ; Product distance based code design ; Lattices ; Algebraic number theory ; Algebraic lattices ; Ideal lattices ; Algebraic rotations with high product distance ; Sphere decoding ; Performance of rotated constellations ; Conclusions; title: Estimation of time-varying channels : a block approach. Introduction ; System and channel model ; Channel estimation based on a single block ; Channel estimation based on multiple blocks ; Extension to MIMO systems ; Adaptive channel estimation ; Conclusions; title: Pilot design and optimization for transmission over time-varying channels. Introduction ; Pilot design : a framework ; Optimal TDM pilot insertion pattern in single carrier systems ; Alternative pilot insertion strategy : superimposed training ; Resource allocation : amount of training and power optimization ; Pilot design for MIMO channels ; Pilot design for wideband systems ; Conclusion ; The Kalman Filter for TDM training ; Proof of proposition 5.1 ; Proof of Lemma 5.1 ; Proof of theorem 5.1; title: Equalization of time-varying channels. Introduction ; System model ; Coherent equalization ; Noncoherent equalization ; Conclusion ; Derivation of posterior LLR expression (6.36) ; Derivation of the noncoherent MLSD expression (6.73) ; Explanation of EM recursion (6.91) ; Info EM(B) algorithms for noncoherent equalization; title: OFDM communications over time-varying channels. OFDM systems ; ICI mitigation techniques ; Time-varying channel estimation ; Concluding remarks; title: Multiuser MIMO receiver processing for time-varying channels. Introduction ; Multiuser MIMO systems ; Tools for complexity reduction ; Iterative multiuser MIMO time-varying channel estimation ; Linear joint antenna multiuser detection ; Nonlinear detection ; Simulation results ; Conclusions ; Computation of the log-likelihood ratio (8.44); title: Time-scale and dispersive processing for wideband time-varying channels. Introduction ; Narrowband channel characterization ; Wideband delay-scale channel characterization ; Wideband dispersive channel characterization ; Underwater wireless communication channels ; Application example.