MiSTA: An Age-Optimized Slotted ALOHA Protocol

An adaptive Slotted ALOHA Algorithm

Slotted ALOHA channels are inherent instability and must be equipped with proper control. In this paper, we analyze the principle of ppersistent control algorithm (pPCA) at first, we propose a novel auto-control algorithm which combines the multiple factor into p-persistent autocontrol algorithm (MF-pPCA). The simulation demonstrates that the novel algorithm can accelerate the adjusting speed a...

Performance Analysis of RFID Framed Slotted Aloha Anti-Collision Protocol

In this paper, we develop a novel mathematical model to estimate the probability distribution function of the number of tags discovered after a certain number of interrogation rounds. In addition, the pdfs of the number of rounds needed to discover all the tags are also calculated. The estimation of such pdfs will be helpful in estimating the number of interrogation rounds and the optimal param...

The stability region of the finite-user slotted ALOHA protocol

Proposed ST-Slotted-CS-ALOHA Protocol for Time Saving and Collision Avoidance

Time Saving and energy consumption has become a vital issue that attracts the attention of researchers in Underwater Wireless Sensor Networks (UWSNs) fields. According to that, there is a strong need to improve MAC protocols performance in UWSNs, particularly enhancing the effectiveness of ALOHA Protocol. In this paper, a time-saving Aloha protocol with slotted carrier sense proposed which we c...

Dynamic Grouping Frame-slotted Aloha

Passive UHF RFID systems using Dynamic Frame-Slotted ALOHA (DFSA) adjust the frame size according to the number of tags, but frame size N is equals to 2^Q and cannot be adjusted exactly to the number of tags to be identified. In this paper, we proposed a new Aloha based anti-collision algorithm which divides the tags and adjusts the frame sizes in such a manner as to always keep the system effi...