Energy efficiency utilizing lookup table in wireless sensor networks

In this paper we present a method for calculation of minimal energy parameters in packet transmission using lookup table. The parameters are transmission power and packet length. The proposed solution depends on careful selection of transmission energy points to be pre-calculated to achieve accuracy greater than 99.9%. This way, energy minimum can be found almost instantaneous with as little as 7700B of memory space usage. From the perspective of wireless sensor network nodes, methods utilizing lookup tables can reduce time needed for obtaining solution considerably, compared to numerical methods, since it is faster to locate data in table than to calculate it, especially when complex calculations are required.