Performance Enhancement of Bit-Level XOR Compressed Image OFDM Transmission Systems

Table 1

Probability distribution of the 16-QAM constellation points for images with and without bit XOR operation.

Image P (si)	Lena		Cameraman		Couple		Mandrill
	w/o	w/	w/o	w/	w/o	w/	w/o	w/
P (s0)	0.4752	0.1832	0.5505	0.1922	0.5205	0.1803	0.4358	0.1737
P (s1)	0.0551	0.021	0.0368	0.0154	0.0491	0.0215	0.0603	0.0252
P (s2)	0.0494	0.0154	0.0381	0.0148	0.0328	0.0133	0.0391	0.0141
P (s3)	0.0247	0.0208	0.0138	0.0171	0.0233	0.0215	0.0289	0.0294
P (s4)	0.0383	0.0123	0.0432	0.0145	0.0281	0.0112	0.0393	0.0147
P (s5)	0.0085	0.0092	0.0064	0.0074	0.0077	0.0083	0.0134	0.0141
P (s6)	0.0179	0.0061	0.0125	0.0049	0.0135	0.0054	0.0187	0.0084
P (s7)	0.0198	0.0511	0.0115	0.0286	0.0189	0.0446	0.0242	0.0606
P (s8)	0.0483	0.0185	0.0258	0.0100	0.0448	0.0195	0.0610	0.0250
P (s9)	0.0058	0.0172	0.0046	0.0118	0.0051	0.0128	0.0080	0.0180
P (s10)	0.0086	0.0081	0.0070	0.0060	0.0087	0.0082	0.0143	0.0139
P (s11)	0.0118	0.0370	0.0141	0.0420	0.0109	0.0276	0.0144	0.0388
P (s12)	0.0195	0.0242	0.0159	0.0134	0.0221	0.0245	0.0300	0.0301
P (s13)	0.0150	0.0488	0.0144	0.0377	0.0127	0.0315	0.0136	0.0379
P (s14)	0.0203	0.0548	0.0148	0.0365	0.0228	0.0521	0.0265	0.0632
P (s15)	0.1819	0.4724	0.1907	0.5476	0.1791	0.5175	0.1725	0.4329