Using remaining battery lifetime information and relaying to decrease outage probability of a mobile terminal

The aim of this paper is to demonstrate by employing relaying and using the remaining battery lifetime information of mobile terminals (MT) in next generation cellular networks, the outage probability of the MT is reduced. We define outage probability as the probability that the connection between the MT and the base station (BS) is lost when the MT is asked to use a transmission power greater than some threshold. This threshold is determined based on the remaining battery lifetime of the MT. We assume a linear relationship between the remaining battery lifetime and the maximum allowed transmission power. We used a 2-hop relaying mechanism to illustrate our concept, and simulated for both urban and sub-urban terrains. The outage probability is significantly different for both the terrains, upon which we suggest the type of relay suitable for relaying for each of the terrains. We consider two types of relays - relays that have infinite battery power like for cars, and relays that have finite battery power like for other MTs.