Handoff in Radio over Fiber Indoor Networks at 60 GHz

Wireless indoor networks employing Radio over Fiber technique combining 60 GHz wireless networks with wired networks is a new solution to provide high definition in-home multimedia applications. About 5 Gbps is available around 60 GHz band. In 60 GHz band each antenna can cover a small space such as a single room in a building. Thus more antennas are needed to cover the whole building. This leads to frequent handoffs. In addition, the overlapping between two adjacent cells is normally small; therefore a handoff should be completely done in a relatively shorter time compared to cellular networks. Since there are many research results and commercial systems for wireless indoor positioning, predicting the direction of the movement of a user is very easy. This paper proposes the direction assisted handoff algorithm. The simulation results show that the proposed handoff algorithm can reduce the total number of handoffs while increasing the percentage of successful handoffs.