Why LDPC Codes are Strong Candidates for Next Generation Wireless Systems ♦ Next Generation Wireless Systems typically require higher data throughput in a given bandwidth • High rate FEC with higher order modulation (e.g. cdma2000 EVDV, HSDPA) is required • Applications require high speed by default permit use of long blocks ♦ Turbo codes tend to lose performance at high code rates due to excessive puncturing, turbo trellis codes become rather complex to implement for higher order modulation

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