Abstract
Recently, we have proposed a DS-CDMA multi-hop virtual cellular network (VCN). The channel segregation dynamic channel allocation (CS-DCA) is applied for wireless multi-hop links in each virtual cell. If all wireless ports in a virtual cell have successfully allocated channels, the channel allocation is successful; otherwise the channel allocation is considered to have failed. In this paper, the failure rate is examined by computer simulation. It is shown that CS-DCA provides significantly smaller failure rate compared to fixed channel allocation (FCA). It is also found that the CS-DCA failure rate is sensitive to the frequency-selectivity of the channel. The CS-DCA failure rate becomes minimum at a certain number L of propagation paths. This suggests that the spreading bandwidth should be carefully chosen.
| Original language | English |
|---|---|
| Pages (from-to) | 3481-3485 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 60 |
| Issue number | 5 |
| Publication status | Published - 2004 Dec 1 |
| Event | 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States Duration: 2004 Sept 26 → 2004 Sept 29 |
Keywords
- Adhoc network
- Channel segregation
- Dynamic channel allocation
- Multi-hop network
- Routing
- Virtual cellular network
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics