Figure 13From: A review on synchronous CDMA systems: optimum overloaded codes, channel capacity, and power controlThe normalized sum capacity bounds versus Eb/N 0 in the limit when n and m go to infinity for binary input and β = 2, 4 and 8. Depending on the values of β, Tanaka's bound is somewhere between other bounds but closer to the conjectured upper bound as β increases. As β increases, the lower and upper bound and Tanaka's bound become very tight.Back to article page