State Aware-Based Prioritized Experience Replay for Handover Decision in 5G Ultradense Networks

Table 1

List of acronyms.

Symbol	Description
5G	5 generation
AHP	Analytic hierarchy process
A3C	Asynchronous advantage actor-critic
DDQN	Double deep Q-network
DNN	Deep neural networks
DQN	Deep Q-network
DRL	Deep reinforcement learning
ES	Evolution strategy
GRA	Grey relational analysis
HetNets	Heterogeneous networks
HOF	Handover failure rate
HOR	Handover rate
IoT	Internet of Things
KPIs	Key performance indicators
LTE	Long-Term Evolution
MBS	Macro base station
MDP	Markov decision process
PER	Prioritized experience replay
QoS	Quality of service
RL	Reinforcement learning
SAW	Simple additive weighting
SBS	Small base station
SDN	Software-defined network
SA-PER	State ware-based prioritized experience replay
TOPSIS	Technique for Order Preference by Similarity to Ideal Solution
UDN	Ultradense networks