sentences:  One typical characteristic of WLANs is that they are mostly very local, without the capability of seamless movement from one network to another.Cellular networks or WAN are designed for citywide/national/global coverage areas and seamless mobility from one access point (often defined as a Base Station) to another allowing seamless coverage for very wide areas.Cellular network technologies are often split into 2nd generation 2G, 3G and 4G networks.