Small Cell base stations (SCBS) are widely recognized as a solution to the insatiable demand for mobile data traffic which has been about doubling every year. Mobile traffic is expected to reach 10.8 exabytes per month in 2016 from 0.6 exabytes per month in 20111. The macro-cellular architecture where base station antennas are mounted on building rooftops has served the purpose of providing mobile voice service very well.