In this work, a model of a MANET has been developed, performance of different routing protocols (DSR, GRP and OLSR) have been analyzed in terms of bandwidth utilization, delay, media access delay, packet retransmission, traffic sent and received and self-similar nature of the network traffic is also examined. The results of the analysis showed that OLSR and GRP have better performance on a larger wireless networks than DSR. In additional, routing protocols and increasing the number of network users (mobile stations) does not induce self – similar properties on a wireless network and it is found that, OLSR is the best for large wireless networks. Keywords: Self-similarity, Protocols, Wireless, Network, Hurst index