Thesis - Department of Electronic & Computer Engineering

It has to be stressed that unlike traditional coding of information, the pulse streammust be viewed as a statistical representation where the statistical properties must bepreserved, while loss of data may be tolerated. Since it is statistical, we must have alarge enough sample set in order to evaluate the behavior of the pulse coupled WTAnetwork. In this work, the size of the sample set is 25.5.6.1 Response time under different communication schemesWe study the response time for the following three cases.• No collision considerationWhen not taking the collisions into account, undoubtedly it will give the best performancewe can achieve with the pulse coupled model, because the channel capacityis assumed to be infinite.• Non-arbiteredBy handling the collision as illustrated in section 4.2.1, we simulate the non-arbiteredcommunication scheme by Mortara.• ArbiteredTo simulate the fully arbitered communication scheme by Boahen, we handle thecollision using the arbitration scheme demonstrated in section 4.2.2,We estimate the response time forT p = 0.01. Based upon the steady state analysis,in this case,θ l ( 0.01) = 0.02 , θ h ( 0.01) ≅ 0.4450