This paper describes the design of modulation, compression coding and transmission control in underwater acoustic color image transmission system. This design adapts a special system of modulation and transmission con...This paper describes the design of modulation, compression coding and transmission control in underwater acoustic color image transmission system. This design adapts a special system of modulation and transmission control based on a DSP(Digital Signal Processing) chip, to cope with the complex underwater acoustic channel. The hardware block diagram and software flow chart are presented.展开更多
A mobile ad hoc network (MANET) is a wireless network without any fixed infrastructure. All nodes must communicate with each other by a predefined routing protocol. Most of routing protocols don’t consider binding in...A mobile ad hoc network (MANET) is a wireless network without any fixed infrastructure. All nodes must communicate with each other by a predefined routing protocol. Most of routing protocols don’t consider binding internet addresses to mobile nodes. However, in network mobility (NEMO), all mobile nodes can’t only communicate with Internet using Bi-directional tunneling but also can be allocated an Internet address. In this paper, we propose two algorithms with the nested NEMO topology to reconstruct the Internet-based MANET. Additionally, a novel load balancing solution is proposed. The Mobile Router (MR) which acts as a central point of internet attachment for the nodes, and it is likely to be a potential bottleneck because of its limited wireless link capacity. We proposed a load-information in the route advertisement (RA) message. The simulation results show that the proposed solution has significantly improved the connection throughput.展开更多
文摘This paper describes the design of modulation, compression coding and transmission control in underwater acoustic color image transmission system. This design adapts a special system of modulation and transmission control based on a DSP(Digital Signal Processing) chip, to cope with the complex underwater acoustic channel. The hardware block diagram and software flow chart are presented.
文摘A mobile ad hoc network (MANET) is a wireless network without any fixed infrastructure. All nodes must communicate with each other by a predefined routing protocol. Most of routing protocols don’t consider binding internet addresses to mobile nodes. However, in network mobility (NEMO), all mobile nodes can’t only communicate with Internet using Bi-directional tunneling but also can be allocated an Internet address. In this paper, we propose two algorithms with the nested NEMO topology to reconstruct the Internet-based MANET. Additionally, a novel load balancing solution is proposed. The Mobile Router (MR) which acts as a central point of internet attachment for the nodes, and it is likely to be a potential bottleneck because of its limited wireless link capacity. We proposed a load-information in the route advertisement (RA) message. The simulation results show that the proposed solution has significantly improved the connection throughput.
