Abstract: This paper presents a new version of leach protocol called “ED-LEACH” which aims to conserve energy considering BS distance and central distance of cluster by the passage of time. Compared to leach protocol, ED-LEACH has more longevity. The researcher evaluates both LEACH and ED-LEACH in Matlab. Results proves that energy consumption decreases about 20% Moreover in protocol of wireless sensor the first node lasts 6 times longer than leach protocol.Abstract: This paper presents a new version of leach protocol called “ED-LEACH” which aims to conserve energy considering BS distance and central distance of cluster by the passage of time. Compared to leach protocol, ED-LEACH has more longevity. The researcher evaluates both LEACH and ED-LEACH in Matlab. Results proves that energy consumption decreases abou...Show More