6533b825fe1ef96bd1283261

RESEARCH PRODUCT

Introduction of Multiflow for HSDPA

Vesa HytonenThomas Malcolm ChapmanOleksandr PuchkoThomas Hohne

subject

ta113Computer scienceNetwork packetbusiness.industryHSDPALoad balancing (computing)Antenna diversityMonipistelähetysScramblingHandoverTelecommunications linkNetwork performanceNodeBbusinessMultipoint transmissionComputer network

description

This paper introduces a multi-cell transmission scheme for High-Speed Downlink Packet Access (HSDPA) networks, called Multiflow. In this concept, downlink data is transmitted to a user terminal at the border of two cells from one or both of the cells. The cells may belong to same NodeB or to two different NodeBs. The data flows are separated by different scrambling codes used by each associated cell, thus the flows can be treated independently. This provides increased multi-user diversity by means of flexibility in downlink resource management, in addition to the spatial diversity of multiple transmission locations. Another important gain mechanism for this scheme is realized by short-term load balancing between neighboring cells. We evaluate the performance of Multiflow by semi-static system level simulations. The presented results reveal high throughput gains for users in handover areas and also a slight improvement to overall network performance. peerReviewed

yearjournalcountryeditionlanguage
2012-05-012012 5th International Conference on New Technologies, Mobility and Security (NTMS)
https://doi.org/10.1109/ntms.2012.6208684