LTE-Advanced Radio and Network Optimization: Basic Coverage and Interference Constraints

Fernando J. Velez, Sofia Sousa, Jessica Acevedo Flores, Daniel Robalo, Albena Dimitrova Mihovska, Ramjee Prasad

Research output: Contribution to conference without publisher/journalPaper without publisher/journalResearchpeer-review


In cellular optimization, the UL and DL the values
from carrier-to-noise-plus-interference ratio (CNIR) from/at the
mobile station are very important parameters. From a detailed
analysis of its variation with the coverage and reuse distances for
different values of the Channel Quality Indicator (CQI) and given
ITU-R propagation models, an evaluation of the possible range for
the reuse factor, rcc, of LTE-A is performed for the DL. By
considering CQI and reference CNIR requirements recommended
by 3GPP, DL peak bit rates along with the Transport Block Size
assumed for single stream and bandwidths of 10 and 20 MHz, PHY
and supported throughputs are analysed. HetNets with Carrier
Aggregation (CA) are considered, where macro cells operating at
800 MHz provide coverage and small cells (SCs) operating at 2.6
GHz provide throughput enhancement at hotspots. A clear
decrease of the supported throughput for the highest coverage
distances in NLoS propagation conditions is shown. Besides, owing
to existence of a breakpoint distance, dBP, in the two slope model for
LoS propagation, with SCs, a maximum occurs for system capacity
for coverage distances, R, in the range between dBP/rcc and dBP.
Original languageEnglish
Publication dateDec 2015
Publication statusPublished - Dec 2015
EventIEEE Global Wireless Summit 2015: Wireless Personal Multimedia Communication - Novotel Convention Centre, Hyderabad, India
Duration: 13 Dec 201516 Dec 2015


ConferenceIEEE Global Wireless Summit 2015
LocationNovotel Convention Centre
Internet address


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