Discrete bacterial foraging optimization for resource allocation in macrocell-femtocell networks

Abstract

Femtocells are good examples of the ultimate networking technology, offering enhanced indoor coverage and higher data rate. However, the dense deployment of femto base stations (FBSs) and the exploitation of subcarrier reuse between macrocell base stations and FBSs result in significant co‐tier and cross‐tier interference, thus degrading system performance. Therefore, appropriate resource allocations are required to mitigate the interference. This paper proposes a discrete bacterial foraging optimization (DBFO) algorithm to find the optimal resource allocation in two‐tier networks. The simulation results showed that DBFO outperforms the random‐resource allocation and discrete particle swarm optimization (DPSO) considering the small number of steps taken by particles and bacteria.

Optimization of Cognitive Femtocell Network via Oppositional Beetle Swarm Optimization Algorithm

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Construction of supply chain coordination and optimization model of fresh food e-commerce platform based on improved bacterial foraging algorithm

“…In the fresh food e-commerce supply chain composed of fresh food e-commerce platform and suppliers, the improvement of effort level needs to pay the corresponding effort cost, which leads to the increase of the total cost of the supply chain [17][18][19]. Wang Lei et al used wholesale price contract to help member enterprises improve the level of fresh-keeping efforts when they studied the limited capacity of fresh-keeping service of individual member enterprises in fresh agricultural products supply chain; Sana studied the effect of promotion efforts on supply chain channel coordination under uncertain market demand, and the conclusion showed that the market demand was affected by both promotion efforts and random variables, and the effect of promotion effort was not infinite increasing; Cachon et al pointed out that revenue sharing contract could encourage member enterprises to make decisions in the direction of maximizing the total profit of the supply chain; Ma et al studied the service effort problem of two-level supply chain, and concluded that only when cost sharing contract was considered in the contract could supply chain achieve perfect coordination.…”