16.03.2015 Views

Final report on link level and system level channel models - Winner

Final report on link level and system level channel models - Winner

Final report on link level and system level channel models - Winner

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

WINNER D5.4 v. 1.4<br />

<strong>system</strong> used by KTH is self-made based <strong>on</strong> commercial laboratory equipment. All measurements <strong>system</strong>s<br />

are described in more detail below. For further informati<strong>on</strong> the reader is advised to c<strong>on</strong>sult the web pages<br />

under the <strong>link</strong>s given in Table 5.1.<br />

5.1.2.1 PropSound <strong>channel</strong> sounder<br />

Figure 5.1 presents a schematic diagram of PropSound <strong>channel</strong> sounder. The sounder <strong>system</strong> c<strong>on</strong>sists of<br />

separate transmitter <strong>and</strong> receiver parts, which both are c<strong>on</strong>trolled through a pers<strong>on</strong>al computer. Both TX<br />

<strong>and</strong> RX are able to c<strong>on</strong>trol RF switches, which are synchr<strong>on</strong>ized in order to make time-multiplexed<br />

MIMO measurements.<br />

Figure 5.1: Block diagram of PropSound multidimensi<strong>on</strong>al sounder.<br />

NOK <strong>and</strong> EBIT both have a PropSound <strong>channel</strong> sounder. However, the <strong>system</strong>s have somewhat different<br />

characteristics. The key features of the EBIT PropSound <strong>channel</strong> sounder are listed in Table 5.2, while the<br />

NOK PropSound features are listed in Table 5.3.<br />

Table 5.2: Key features of EBIT PropSound <strong>channel</strong> sounder.<br />

Feature Value Note<br />

Frequency range<br />

1.7 GHz – 2.7 GHz<br />

Depending <strong>on</strong> RF unit<br />

Max. number of transmitter <strong>channel</strong>s<br />

(Tx-antennas)<br />

Max. number of receiver <strong>channel</strong>s (Rxantennas)<br />

Maximum RF power in antenna input<br />

(after TX switch)<br />

Chip rate<br />

Sequence length (defines maximum<br />

excess delay)<br />

5.1 GHz – 5.9 GHz<br />

64 Limited by the switch<br />

64 Limited by the switch<br />

26 dBm<br />

Up to 100 Mchips/s<br />

31 – 4096<br />

Propagati<strong>on</strong> delay resoluti<strong>on</strong> 10 ... 10000 ns ( = 1 / chip rate) With ISIS resoluti<strong>on</strong><br />

significantly better<br />

Max. meas. data storage rate<br />

27 Mb/sec<br />

Table 5.3: Key features of NOK PropSound sounder.<br />

Feature Value Note<br />

Frequency range 1.8−2.1GHz, 2.1−2.5GHz, depending <strong>on</strong> RF unit<br />

Page 57 (167)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!