Estimation of radio signal spatial local mean

Accurate estimation of RF signal spatial local mean is of crucial importance in wireless communication systems planning, design and operation, specifically in coverage planning tools, channel access and power control, handoff algorithms, etc. However, so far, no universally applicable and verified approach for calculation of relevant averaging parameters has been developed. In this paper, comprehensive overview of spatial averaging problem is presented, including available methods for solving it. With this regard, closed-form expressions for averaging parameters calculation are delivered based on the approaches that are considered most accurate. Finally, the validity domains of these expressions are tested, indicating their applicability areas under specific propagation conditions.

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