Pemanfaatan teknologi Internet of Things (IoT) terutama di daerah terpencil masih tergolong rendah, padahal tersebut juga dibutuhkan untuk implementasi smart farming atau village yang bertujuan meningkatkan kualitas hidup masyarakat pedesaan. Mahalnya biaya investasi jaringan IoT menggunakan selular Wi-Fi menjadi salah satu penyebab ini lambat. Penelitian kami sebelumnya telah mengembangkan alt...

This paper deals with the tradeoffs between security, real-time and lifetime performance. Due to the multihop nature of communication wireless ad hoc networks are very vulnerable to attacks. Malicious nodes included in a routing path may misbehave and organize attacks such as black holes. Scaling the number of hops for a packet delivery we trade off energy efficiency against security and real-t...

We determine the optimal number of relay nodes to be used between a given source–destination pair in a wireless ad hoc network. The optimal number of relay nodes is given by the route that requires the least sum transmit power with a guaranteed pre–assigned quality of service. We propose different non–cooperative accessing schemes and compare their performance for multihop transmission in ad ho...

An ad hoc network is a collection of mobile nodes using wireless network interfaces to communicate among themselves, discovering and routing along possibly multihop routes to each other without the assistance of fixed infrastructure. In this paper, we describe the design and demonstration of a set of simple routing protocol mechanisms that substantially improve the transmission of real-time mul...

Data transmission in ad hoc networks involves interactions between MAC-layer protocol and data forwarding along network-layer paths. These interactions have been shown to have significant effect on system performance. In this paper, their impact on the multipath data transmission system over multihop IEEE 802.11 MAC-based ad hoc networks is studied. An analytical model is developed to demonstra...

Broadcast protocols play a vital role in building services and applications for multihop, mobile, wireless ad hoc networks (MANET). This paper describes the design, implementation and evaluation of a new broadcast protocol for a multihop, mobile wireless ad hoc network that provides significantly better performance than the currently existing protocols. In particular, this protocol provides low...

It is well known that one of the critical sources of TCP poor performance in multihop ad hoc networks lies in the TCP window mechanism that controls the amount of traffic sent into the network. In this paper, we propose a novel cross layer solution called “TCP Contention Control” that dynamically adjusts the amount of outstanding data in the network based on the level of contention experienced ...

The focus of this paper is cross layer optimization of relay selection on multihop wireless ad hoc networks. Cross-layer metrics that will be optimized are power consumption, throughput, and load balancing in wireless ad hoc networks for the outdoor and indoor configurations. Those three resources (performance indicators) are optimized using the multi objective optimization with Pareto method. ...