e complete network as an entity. The main aim of self-healing is to detect a failure or outage and perform repair actions to recover the system from that outage or failure. Let's look at an example case of cell outage detection with compensation to further explain the SON self-healing mechanism. Cell Outage Detection Cell outage is detected by means of various alarms and alarm correlations. The outage can be from a service, process, or the complete cell itself. The network element should be designed to raise alarms or report counters or KPIs corresponding to these outages and pass it on toward the element manager system (EMS) for further actions. At the central SON level, outage KPIs are continuously monitored. If KPIs are below threshold or if the alarms for the network element exist for an extended period of time, the cell is then marked on the outage list by the central SON. Cell Outage Compensation As part of outage compensation, the central SON will need to detect the best set of cells that can compensate for the cell outage. The compensating set for an outage cell can be predetermined by the central SON, wherein for each cell, an outage compensation is calculated prior to and upon outage detection, and these compensation algorithms are then executed. The downside of this method in outage compensation is that the compensation calculation is static and does not consider the current load condition of the compensating cells. Also in the case of multiple outages within the network, the predetermined cell outage compensation algorithm will be suboptimal. CHAPTER 2 SELF-ORGANIZING NETWORKS IN LTE DEPLOYMENT Another way to compensate for the outage cell is to dynamically (upon outage) determine the best cells that should be used for compensation. Some of the considerations for candidate cell selection can be: Proximity of the cell to the outage cell. Often the higher priority neighbors are selected as compensating cells as the amount of parameter tuning that will be required for these tier-1 neighbors will be compa