TY - GEN
T1 - On the performance of coded/shaped modulation
AU - Wang, Fu Quan
AU - Perez, Lance C.
AU - Costello, Daniel J.
PY - 1994
Y1 - 1994
N2 - An upper bound on the error probability of a shaped modulation scheme is derived. The bound shows that nonequiprobable signaling affects the performance in two ways. First, it reduces the average signal energy which contributes positively to the shaping gain. Second, it reduces the "equivalent minimum distance" of the signal set relative to the noise level which contributes negatively to the shaping gain. The "equivalent minimum distance" becomes the true minimum distance in the signal set when the noise level is near zero (SNR → ∞). Thus, the conventional definition of shaping gain is in fact the asymptotic shaping gain.
AB - An upper bound on the error probability of a shaped modulation scheme is derived. The bound shows that nonequiprobable signaling affects the performance in two ways. First, it reduces the average signal energy which contributes positively to the shaping gain. Second, it reduces the "equivalent minimum distance" of the signal set relative to the noise level which contributes negatively to the shaping gain. The "equivalent minimum distance" becomes the true minimum distance in the signal set when the noise level is near zero (SNR → ∞). Thus, the conventional definition of shaping gain is in fact the asymptotic shaping gain.
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U2 - 10.1109/ISIT.1994.394689
DO - 10.1109/ISIT.1994.394689
M3 - Conference contribution
AN - SCOPUS:33747633228
SN - 0780320158
SN - 9780780320154
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 329
BT - Proceedings - 1994 IEEE International Symposium on Information Theory, ISIT 1994
T2 - 1994 IEEE International Symposium on Information Theory, ISIT 1994
Y2 - 27 June 1994 through 1 July 1994
ER -