Thus, we conclude that by adjusting the optimal power we are actually trying to implement a rate matching step.
===Power control and QoSusing Dynamic Resource Scheduling(DRS) Pathway===Transmission power of mobile station is proportional to power control law, which is a function of distance from the base station, transmission rates, interference level The Mobile Station(number of active usersMS). In this method, the Bit Error probability performs Matching of Traffic Descriptors and obtains the multi-rate CDMA mobile station is calculated at the Base station using transmission rates of the mobileconnection parameters from them. The optimal power control functions These parameters are derived based on sent to the bit error probability at Base Station(BS) which allocates the base station and these power control functions are transmitted Spread code according to the mobile handsetparameters received. The mobile base station calculates the optimum a value of power using dynamic programming index and hence Power levels and transmits its data at this power level. It is of interest them to note that the optimum power level MS. This information is related conveyed to power index which will determine the spreading gain MS using TPC(Transmission Power Control) bits and hence the overall bit ratea closed loop power control method as explained in section 5. Thus the optimum power level 6 above is acheived by transmitting the data at the calculated bit rate.performed
==Conclusion==
Substantial amount of research has been done in the field of QoS in CDMA communication system in the year 1998-99 and this has led to the invention of multitude of methodologies ranging from power control to Rate matching and so on with the sole aim of improving QoS.