{'fraction_non_alphanumeric': 0.01684836471754212, 'fraction_numerical': 0.013875123885034688, 'mean_word_length': 5.516129032258065, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
SEAMLESS MOBILITY IN 4G HETEROGENEOUS WIRELESS NETWORKS

A Heterogeneous Network abbreviated as HetNet is a mix of macrocells, picocells,femtocells, remote radio heads and relays. A HetNet is a network consisting of various wireless access technologies and functionalities. The Next Generation mobility technique called the 4G deals with the multi-access heterogeneous wireless networks which provide seamless connectivity of multimedia services at a higher data rate to the end users. There are various research challenges like self organization, backhauling, handover and interference for the 4G The various handover mechanisms with respect to intradomain and interdomain are analyzed. An experimental testbed for the seamless mobility of heterogeneous wireless techniques such as mobility from IEEE 802.11 to IEEE 802.16e is considered. The performance results of a seamless handoff with minimum packet loss and delay proves the efficiency in the mobility of the HetNets using the Network Simulator (NS-2).