TY - GEN
T1 - Punctured vs rateless codes for hybrid ARQ
AU - Soljanin, Emina
AU - Varnica, Nedeljko
AU - Whiting, Philip
PY - 2006
Y1 - 2006
N2 - Two incremental redundancy hybrid ARQ (IR-HARQ) schemes are compared: one is based on LDPC code ensembles with random transmission assignments, the other is based on recently introduced Raptor codes. A number of important issues, such as rate and power control, and error rate performance after each transmission on time varying binary-input, symmetric-output channels are addressed by analyzing performance of LDPC and Raptor codes on parallel channels. The theoretical results obtained for random code ensembles are tested on several practical code examples by simulation. Both theoretical and simulation results show that both LDPC and Raptor codes are suitable for HARQ schemes. Which codes would make a better choice depends mainly on the width of the signal-to-noise operating range of the HARQ scheme, prior knowledge of that range, and other design parameters and constraints dictated by standards.
AB - Two incremental redundancy hybrid ARQ (IR-HARQ) schemes are compared: one is based on LDPC code ensembles with random transmission assignments, the other is based on recently introduced Raptor codes. A number of important issues, such as rate and power control, and error rate performance after each transmission on time varying binary-input, symmetric-output channels are addressed by analyzing performance of LDPC and Raptor codes on parallel channels. The theoretical results obtained for random code ensembles are tested on several practical code examples by simulation. Both theoretical and simulation results show that both LDPC and Raptor codes are suitable for HARQ schemes. Which codes would make a better choice depends mainly on the width of the signal-to-noise operating range of the HARQ scheme, prior knowledge of that range, and other design parameters and constraints dictated by standards.
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M3 - Conference contribution
AN - SCOPUS:33751058788
SN - 142440035X
SN - 9781424400355
T3 - 2006 IEEE Information Theory Workshop, ITW 2006
SP - 155
EP - 159
BT - 2006 IEEE Information Theory Workshop, ITW 2006
T2 - 2006 IEEE Information Theory Workshop, ITW 2006
Y2 - 13 March 2006 through 17 March 2006
ER -