Next generation of mobile communications will include combination of both infrastructure based network and infrastructure less. These types of networks are termed as hybrid wireless networks. Hybrid wireless network have emerged as a promising solution for bandwidth intensive services. These networks offer the advantage of spectrum reusability due to multi-hop relaying. However routing is a major issue of concern in these networks. OLSR is one of the popular proactive routing protocols In OLSR; MPR selection process involves huge overhead. The work mainly focuses on improving the efficiency of present OLSR routing protocol using hybrid wireless network. Also, OLSR is enhanced by employing a new weight based selection technique for Multi point relay (MPR) nodes. The various simulation results show that the use of hybrid wireless network architecture helps in better selection of MPRs node for OLSR. It improves the efficiency of OLSR protocol which is visible from improved throughput, higher packet delivery ratio, reduced end to end delay and routing overheads.