This course is the second of a two-term sequence with 6.450 . The focus is on coding techniques for approaching the Shannon limit of additive white Gaussian noise (AWGN) channels, their performance analysis, and design principles. After a review of 6.450 and the Shannon limit for AWGN channels, the course begins by discussing small signal constellations, performance analysis and coding gain, and hard-decision and soft-decision decoding. It continues with binary linear block codes, Reed-Muller codes, finite fields, Reed-Solomon and BCH codes, binary linear convolutional codes, and the Viterbi algorithm. More advanced topics include trellis representations of binary linear block codes and trellis-based decoding; codes on graphs; the sum-product and min-sum algorithms; the BCJR algorithm; turbo codes, LDPC codes and RA codes; and performance of LDPC codes with iterative decoding. Finally, the course addresses coding for the bandwidth-limited regime, including lattice codes, trellis-coded modulation, multilevel coding and shaping. If time permits, it covers equalization of linear Gaussian channels.

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FOX Sports Detroit talks with Jiri Hudler after the Red Wings' 3-1 win over the Flames.

Back from an ankle injury, Ray Allen scores 22 points in the Celtics' loss

Kevin Garnett says it's what the team needs, and Paul Pierce says it takes pressure off him

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Een shoot met Touriya Haoud in Barcelona Interview: Fiona Hering Hairstylist: Rob Peetoom Stylist: Danie Bles Productie: MINIbar Co-productie: Blue Circle Camera: Ties Versteegh

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Hampshire Linux User Group

Vic gives a short talk on the RPM system for package management. The talk gives an introduction to using RPM along with an explanation of newer front ends and the overcoming of "RPM Hell". See http://www.hantslug.org.uk/cgi-bin/ wiki.pl?TechTalks for more details and copies of the presentation that accompanied the talk. This talk was given at the Hampshire Linux User Group (HantsLUG) meeting on 4th February 2006 at Southampton University.

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ROLEX: AJ Allmendinger brings the No. 60 Ford to the checkered flag, giving Michael Shank his first overall victory at the 24 Hours at Daytona.