I saw one tool in matlab for simulating blockchain. But, after reading the feedback, it seems that tool didn't give flexibility in the simulation. In my opinion, it will be better if you either implement blockchain from scratch and perform simulation or use the existing blockchain platform (e.g., ethereum, hyperledger) and perform simulation.

Thanks.

I saw one tool in matlab for simulating blockchain. But, after reading the feedback, it seems that tool didn't give flexibility in the simulation. In my opinion, it will be better if you either implement blockchain from scratch and perform simulation or use the existing blockchain platform (e.g., ethereum, hyperledger) and perform simulation.

Thanks.

It helps for many applications, it's not customized for blockchain but can be used for the calculations.

Not a task I have done for many years, Blockchain. Sorry

Thanks Noha, Anik Islam Abhi A. Mostafa , John Hudson

The blockchain simulation tool available in MATLAB is waste of time...I am also searching a good tools...in matlab you can simulate distributed network and apply blockchain by coding urself...untill now I come to know that...My research topic is also blockchain...lets build it together if u r interested...we will both get some benefits..( I am learning Matlab for this purpose only and I am in initial phase only)

Thanks Faraz Masood , I will let you know shortly.

Just make it confirm, this could be solved using the Python coding.

Most blockchain developers use Python/C/C++/ Solidity etc.

However, if you are experienced in Matlab you can still experiment with blockchain in Matlab.

There is MDA or SHA hashing here at the file exchange:

https://www.mathworks.com/matlabcentral/fileexchange/31272-datahash

Some sample code here: (which uses the function above)

https://lifeinplaintextblog.wordpress.com/use-matlab-to-implement-a-simple-blockchain/

Thanks Steve Mounce

You are welcome. Anybody can PM me if you would like a tidied version of the code from the link.

Thanks, Mohamed Abdel-Basset

Python will be the best options, as many researchers and developers use it for Blockchain.

I'm interested in that.

I think these applications of MATLAB can be linked with Blockchain/Blockchain simulation

https://www.mathworks.com/solutions.html?s_tid=gn_sol.

I prefer to use a developed Blockchain platform or open-source Blockchain such as Multichain

Dear All

There are a number of Blockchain simulators and each with its specific features:

• Developers have the ability to develop their own BC simulator using programming languages such as python or via other simulators like Matlab or NS3 network simulator.
• Simulator BC using Game Theory or Queuing Theory.

please refer to the following papers:

Recently I found a good but complex simulation/Emulation tool. Shadow(http://shadow.github.io/). It's mainly developed to test Tor protocol as there is no way to simulate the whole of the tor network ni a simulator.

It runs real applications like Tor and Bitcoin over a simulated Internet topology

Shadow does the following:

• creates an isolated simulation environment where virtual hosts may communicate with each other but not with the Internet
• natively executes real applications like Tor and Bitcoin
• provides efficient, accurate, and controlled experiments
• models network topology, latency, and bandwidth
• runs without root on a single Linux machine, or in the cloud
• simulates multiple virtual hosts in virtual time
• simulates the network (TCP stack) and CPU processing delays
• can run private Tor networks with user/traffic models based on Tor metrics
• much, much more!
• (https://github.com/shadow/shadow/blob/master/docs/0-Design-Overview.md)

Mohammed El-hajj Thanks for your detailed list of Simulators. And some of the associated papers published. But I found that to apply Queuing Theory, there is a need for existing statistics,

like in the paper "Simulation Model for Blockchain Systems using Queuing Theory", uses 2 months worth of statistics to test their theory. For Bitcoin, there is existing data. For Permissioned Blockchains, which are not public, there is no way to gather such large scale data.

So, there is a need for a simulator which can run locally or hosted on a cloud to test out newer features or figure out the bottlenecks

Hyperledger Umbra is trying to test out such a tool. They choose first, Shadow tool but later chose Mininet

https://wiki.hyperledger.org/display/INTERN/Hyperledger+Umbra%3A+Simulating+Hyperledger+Blockchains+using+Mininet

In Shadow tool, it allows Blockchain clients to run natively on a machine, while the Shadow Sim(Em)ulator translates some system calls to simulate a network and the interactions between them. In this way, there is no need to run these Blockchain clients in a seperate VM and thereby reducing the use of system resources - which in turn allows the simulator to scale up well.

As such, I think, there is a need for Simulation either be it locally on a single machine or scale up the simulation with thousands of nodes on a cloud. And Shadow(http://shadow.github.io/) seems to be a really good one!

As Hyperledger Umbra chose Mininet to simulate Hyperledger Fabric, even Mininet might be a good bet!

Mohammed El-hajj thanks for your detailed list of simulators! This made my task easier to choose a good tool.

Dear Mohamed Abdel-Basset

Dear all,

Beyond the above mentioned solutions, I would also recommend Ganache, https://www.trufflesuite.com/ganache, of Truffle Suite is a ready to deploy solution for blockchain!

I also recommend using ganache which I used in simulations for my published papers in the following links. You can have a look at what did by integrating it with web3 for full emulations.

Article ABCrowd: An Auction Mechanism on Blockchain for Spatial Crowdsourcing

Article SenseChain: A blockchain-based crowdsensing framework for mu...