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LTE handover procedure supports multiple preparations feature. But the feature is of help to successful re-establishment after radio link failure during handover procedure. The recently announced results from a field test conducted in a downtown in North America show handover failure rate over 21% in dense LTE networks. In this paper, we propose Early Handover Preparation with Ping-Pong Avoidance...
Through the study on “HetNet mobility enhancements for LTE”, it was observed that handover (HO) performance in heterogeneous networks (HetNets) deployments is not as good as in pure macro deployments. It also showed that high speed user equipment (UE) suffers much higher handover failure (HOF) rate than low speed UE. The major cause of HOF is the failure of handover command transmission from source...
We describe issues on the TCP performance in LTE networks. TCP throughput is determined by various factors such as TCP window size, loss probability and RTT. We present measurement results of TCP throughput in a real LTE testbed with various factors and TCP auto-tuning enabled. As expected, the test results show that the AM bearer outperforms the UM bearer due to less loss probability in the former...
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