Name
Abstract | ||
|---|---|---|
ABSTRACT In many applications such as construction, manufacturing, ground robotic vehicles, and rescue operations, there are many,issues that necessitate the capability of transmitting digital videoand thatsuch transmissionsshouldbe performed wirelessly and in an ad-hoc manner. Recently, we proposed an ad-hoc, cluster-based, multihop network architecture for videocommunications. For implementation, the IEEE 802.11 FHSS wireless LAN system using 2GFSK modulation has been deployed. To enhance the overall throughput rate for higher qual- ity video communications, we present a performance eval- uation of the IEEE 802.11 FHSS when 4GFSK modulation option is selected. Unfortunately, the 2 Mb/s system utiliz- ing 4GFSK modulation is not very efficient in terms of RF range. Therefore, to improve its performance for multihop applications, a combination of diversity and non-coherent Viterbi based receiver is considered. For the video trans- mission part, we have considered a bitstream splitting tech- nique together with a packet-based error protection strategy to combat,packet drops under multipath fading conditions. Finally, the paper presents the simulation results, including the effects of the receiver design and diversity on the quality of the received video signals. |
Year | Venue | DocType |
|---|---|---|
2002 | ICIP (1) | Conference |
Citations | PageRank | References |
3 | 0.56 | 1 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hamid Gharavi | 1 | 443 | 59.90 |
| Koichiro Ban | 2 | 43 | 7.32 |