Efficient Access to Simple M-services Using Traditional Methods

In this chapter, we discuss accessing simple M-services using traditional wireless access techniques. First, we show how different access methods can be applied to M-services environment. Then, we present analytical cost model for each access method.

As already mentioned, there are two important factors that are normally used to measure the performance of data access in wireless environments: Access Time and Tuning Time. Applying this concept to M-service environment, the access and tuning times reflect two important aspects of access to M-services, the response time and energy efficiency. In the context of M-services, we define access time and tuning time as follows:

• Access Time: This is the total client waiting time, starting from the issuance of a service request till its completion.

  Tuning Time: Tuning time is the time when CPU and/or wireless receiving devices are active, which means mobile clients are either actively processing requests and/or retrieving data from wireless channels. Tuning time includes the time to download or update the registry (if required), find and download the requested M-service, execute the M-service, and retrieve the requested data items.