Selective handover for traffic balance in mobile radio communications

The selective handover for traffic balance (SHOT) technique, which is effective in increasing frequency efficiency for varying traffic loads, is presented. If the traffic of a cell increases temporarily such that the resource utilization rate exceeds a threshold, SHOT hands some calls over to the appropriate adjacent cells. Three algorithms are proposed and examined through computer simulations. The simulations reveal that SHOT improves the traffic performance by about 50% under the condition that offered traffic is uniformly distributed in the areas when the number of channels of each cell is ten