Packet Routing Based on Integral Normalized Criterion The modified algorithm for constructing routing tables based on the open shortest path first protocol is proposed. It takes into account three criteria: the channels capacity, the number of intermediate nodes on the path and signal propagation delay. The integral criterion to minimize the total relative deviation, calculated on all three criteria, obtained from optimal values as a result of optimization according to separate criteria is proposed. In addition, it is proposed to use weight coefficients for each criterion. The integral criterion includes the normalized values of the ordinary criteria and their weights. The integral criteria must be determined for each metric. The path to be added to the resulting routing table is the one with the best integral criterion.

Improved Selection of the Best Forwarding Candidate in 3MRP for VANETs The design of different metrics in hopbyhop routing protocols for vehicular ad hoc networks (VANETs) has been investigated with the clear objective to improve the performance of VANETs in terms of packet losses and average endtoend delay. However, the best way of combining these metrics to compute a multiscore value for each candidate node to choose the best forwarding one, is an open issue yet. Based on a previous designed routing protocol called Multimedia Multimetric MapAware Routing Protocol (3MRP), a detailed analysis of the power mean function is done to determine which form of metrics combination will give the best results in terms of packet losses and average endtoend delay. Extensive simulations have been conducted indicating that the geometric mean has obtained the lowest average percentage of packet losses.