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    • List of Articles Mohammad Amir Ghasemi Shabankareh

      • Open Access Article

        1 - GSM mobile network and its security problems
        Mohammad Amir Ghasemi Shabankareh Sara Rahimi Javanmardi
        Due to the increase in communications, mobile networks are expanding day by day and significant progress has been made in this regard. In this regard, the first to fourth generation of mobile phones have been created. The second generation GSM (Global System for Mobile More
        Due to the increase in communications, mobile networks are expanding day by day and significant progress has been made in this regard. In this regard, the first to fourth generation of mobile phones have been created. The second generation GSM (Global System for Mobile communications) It is the most popular mobile phone system in the world and according to the latest published news, now more than 500 million people in more than 150 countries use this system. In our country, the network also uses GSM. On the other hand, because the mobile system has an interface It uses air for transmission and the air interface is very vulnerable, network security is doubly important. . The BTS peripheral network is considered as a controlled environment, as access to this part of the network is controlled by service providers. The access network (connecting ME / MS to BTS) is the only network that is a malicious operating environment. Therefore, the goal is to create security in this part of the GSM network. Manuscript profile
      • Open Access Article

        2 - Optical communication with passive silicon photonic chips
        Mohammad Amir Ghasemi Shabankareh Sara Rahimi Javanmardi
        Reports of close optical communication with excellent accuracy of 10 gb / s using reflective mirrors and low-loss silicon isolators for interchip communication. The construction of this piece is done with a method for planting an 8µm wide rod waveguide with a shar More
        Reports of close optical communication with excellent accuracy of 10 gb / s using reflective mirrors and low-loss silicon isolators for interchip communication. The construction of this piece is done with a method for planting an 8µm wide rod waveguide with a sharp mirror, which makes an angle of 54 degrees with the desired surface. Light in the waveguide of the lower chip can be paired with the waveguide in the upper chip, which is done by placing these chips facing each other, in which case the reflecting mirrors create a complete pair and a proximity and proximity of light. Very fast communication sizes have been achieved with chips placed along a nanometer-sized piece, and the results have been compared with a method in which silicon chips are bundled. Our new method of making chip cores is based on a combination of pyramid implantation on silicon, which uses a very small sphere to fine-tune the chip. Chip integration can cause the packages to adjust automatically using the location of the chips, which are a bit thick at first. The final adjustment of the chips in our new method is limited to the optical lithographic resolution. In addition, multi-chip arrays can be aligned with each other, which will have the same accuracy as before. Irreversible data (Nonreturn - to - zero data)  was sent to the waveguides at zero and transmitted during a package consisting of 3 interconnected chips and two optical components. This was done for cross-chip communication. Values such as continuous optical losses, ocular diagrams, bit error rate and power error were measured. There are more places with nano-sized locations. Disturbance or distortion of RMS and small amplitude values for ocular quality are approximately equal to the case where OP × C channels are connected to 10 Gb / s channels. This mechanism for spontaneous tuning of chips allows chips to take advantage of close communications in several different classes. Manuscript profile
      • Open Access Article

        3 - Nano-photonic chip network
        Mohammad Amir Ghasemi Shabankareh Sara Rahimi Javanmardi
        Chip communication, including short correlation, multi-dominant, critical delay correlation, synchronization messages, long data transmission, single format with sensitive passability; Limits the power efficiency and performance of multi-core multi-processor systems. Th More
        Chip communication, including short correlation, multi-dominant, critical delay correlation, synchronization messages, long data transmission, single format with sensitive passability; Limits the power efficiency and performance of multi-core multi-processor systems. This paper deals with a low-power, high-performance nano-photonic chip network compatible with CMOS; This category is called Iris. The Iris subnet, which is based on linear waveguides and is optimized for throughput and connected in orbit, supports data transmission with sensitive throughput. Also, the Iris subnet, which operates on a surface (two-way) waveguide as well as WDm and has several broad domains, improves critical latency traffic and supports orbital communications. Overall, the proposed design offers a chip connection with high power efficiency, low latency and excellent throughput. Manuscript profile