Group Lucifora

Group Description
GSM cell traffic matrices from Salvatore Lucifora, Telecom Italia Mobile.

Ing. Salvatore Lucifora
TIM R/SR-TI
via L. Rizzo, 22
00136 Roma

tel.   +39 06 3900 9241
fax.   +39 06 3900 9315
cell.  +39 335 7534668
email:  <mailto:slucifora :at the domain:
mail.tim.it> slucifora :at the domain:
mail.tim.it


These 2 matrices come from a software tool that evaluates the correct
dimensioning for GSM cell with the coexistence of 2 kinds of traffic channels
(Full-Rate and Half-Rate: the latter requires only half bandwidth with
respect to the FR channel). The tool requires the solution of a sparse linear
system Ax=b.

The cell1.rua and cell2.rua matrices have the same nonzero pattern, and
very similar values.  The 1-norm of C1-C2 is only 0.002, compared with
a 1-norm of about 416 for both C1 and C2.  MATLAB's condest reports a
condition number of 10^12 for C1 and 10^20 for C2.
Displaying all 2 collection matrices
Id Name Group Rows Cols Nonzeros Kind Date Download File
934 cell1 Lucifora 7,055 7,055 30,082 Directed Weighted Graph 2003 MATLAB Rutherford Boeing Matrix Market
935 cell2 Lucifora 7,055 7,055 30,082 Directed Weighted Graph 2003 MATLAB Rutherford Boeing Matrix Market