Title :
Using opportunistic caching to improve the efficiency of handover in LTE with a PON access network backhaul
Author :
Stynes, D. ; Brown, K.N. ; Sreenan, C.J.
Author_Institution :
Dept. of Comput. Sci., Univ. Coll. Cork, Cork, Ireland
Abstract :
This paper investigates the converged architecture of an LTE mobile network and a PON access network. We identify that the default handover behaviour for LTE is highly inefficient when performed on a backhaul PON tree-topology. We propose a scheme of intelligent opportunistic caching, using the existing resources at the eNBs, to help mitigate this inefficiency. We show that we can achieve a significant reduction in the amount of redundant traffic sent over the PON and that in circumstances when the PON upstream is heavily congested, we can greatly improve the mobile terminal´s sustained data rate by up to 50% during the handover process.
Keywords :
Long Term Evolution; cache storage; mobility management (mobile radio); passive optical networks; telecommunication network topology; LTE mobile network; PON access network backhaul; PON tree-topology; PON upstream; converged architecture; handover efficiency improvement; intelligent opportunistic caching; Downlink; Handover; Optical network units; Passive optical networks; Topology; Uplink;
Conference_Titel :
Local & Metropolitan Area Networks (LANMAN), 2014 IEEE 20th International Workshop on
Conference_Location :
Reno, NV
DOI :
10.1109/LANMAN.2014.7028621