CHANNEL CODING STRATEGIES FOR CELLULAR RADIO

To improve re-use of time/frequency slots in a cellular radio system, it is desirable for the average interference levels seen by all users to be made approximately equal. We provide constructions based on orth ogonal latin squares that guarantee different sets of users will inter fere in successive slots. When signal to interference ratios are indep endent from successive symbols, channel codes can provide a large dive rsity gain which is far in excess of the gain against additive noise. Consequently, coding with interleaving fits together very naturally wi th this construction. We illustrate how to achieve large performance i mprovement using convolutional codes with low decoding delay in a slow hopped system.