Abstract
The multiservice uplink capacity and the interference (intracellular and intercellular) statistics (mean and variance) of the sectors of cigar-shaped wideband code-division multiple access (WCDMA) microcell are studied using a model of 5 highway microcells in rural zone. The two-slope propagation loss model with lognormal shadowing is used in the analysis. The capacity and the interference statistics of the microcell are studied for different sector ranges, antenna side lobe levels, standard deviation of the power control error, breakpoint distance, and different intersites correlation coefficient. It is shown that reducing the antenna side lobe level increases the sector capacity. Also, it is shown that the sector range that gives the quasi the maximum sector capacity is in the order of 800 to 1200 m.
Highlights
It is well known that wideband code-division multiple access (WCDMA) is characterized as being interference limited, so reducing the interference results in increasing the capacity
Three techniques are used to reduce the interference: power control (PC) which is essential in the uplink and that can double the downlink capacity, voice activity monitoring that can increase the capacity by 50% and sectorization
In [7], the effect of the imperfect power control on the uplink of code-division multipleaccess (CDMA) cellular networks has been given for hexagonal macrocells calculating the interference statistics assuming a Rayleigh fading channel
Summary
It is well known that WCDMA is characterized as being interference limited, so reducing the interference results in increasing the capacity. For cigar-shaped microcells in rural highways zones, we use a two-slope propagation model with general exponent and investigate the multi-service sector capacity and interference statistics (mean and variance values) of the uplink assuming imperfect power control and finite unequal transmitted power by the mobile for the voice and data services. Those assumptions and the multi-service analysis have not been shown in the previous authors works in [8, 9, 11, 12].
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