Efficient Route Management Method for Mobile Nodes in 6TiSCH Network

The combination of time slotted access and channel hopping technology in IEEE 802.15 TSCH networks enables high reliability and low power operation to meet the stability and real-time requirements of industrial applications. Basically, TSCH and RPL, a routing protocol for TSCH, are proposed for static nodes that generate fewer control messages, so they allow collisions in shared cells when they exchange control messages. In a topology containing mobile nodes, the collision of control messages in a shared cell makes the network difficult to recover quickly. The proposed scheme minimizes the collision of control messages by allocating dedicated control cells to form preferred parent nodes quickly for mobile nodes. We also proposed a method for establishing a fixed route from the root node to the mobile node in RPL to minimize the delay time. Through the simulation using the 6TiSCH simulator, it was confirmed that the performance of the proposed method was approximately 2.5 times better in terms of overhead and resource use, and 33% better in terms of network participation time of mobile nodes compared with existing solutions.

Optimized Performance of IEEE 802.15.4e DSME for Internet of Things

: To enhance the reliability of the link and guarantee deterministic channel access, IEEE 802.15 TG4e has introduced DSME as an amendment to IEEE 802.15.4. In this article, we analyze the throughput and energy consumption of DSME mechanism. Further, we propose optimization framework to find contention window (CW) that can enhance the aggregate utility and minimize the energy consumption of a device. Results prove that the performance of DSME is improved by 80% using the optimal setting of CW. The results are finally validated using ns-3.

Measure of Wireless PAN based on the standard IEEE 802.15 of optical wireless communication technologies for the development of bluetooth as important consideration

Development of WCTP was initiated by the Messaging Standards Committee and submitted to the Radio Paging Community. When the first proposal was received, a sub-committee was established to improve the protocol and issue it as a specification. The sub-committee was moved into the PTC (Paging Technical Committee) which is a volunteer committee composed of industry representatives. The PCIA (Personal Communications Industry) accepted the first full release and adopted the protocol as a PCIA standard. The current version is WCTP 1.3.

Análisis del desempeño de una red Ad-Hoc inalámbrica móvil MANET, empleando el software NS 2.32 bajo el estándar IEEE 802.15

En este artículo se realiza el análisis de una Red Ad-Hoc MANET Móvil bajo el estándar IEEE 802.15.4 utilizando Network Simulator 2.32 (NS) en función del Throughput y el Tiempo Medio parametrizados por el número de nodos para una frecuencia de 2,4 GHz y una tasa de transmisión de 250 kbps. En el canal es usado el modelo de propagación de dos rayos.