Today, with the use of mobile devices everywhere and with the success of cloud computing, the concept of mobile cloud computing (MCC) has been introduced. MCC is an incorporation of cloud computing into the mobile environment. In MCC, computing resources such as memory, processing and storage are not actually present at the device of user. Instead, these resources are moved on to a remote location known as cloud and are owned by some service provider. The user accesses these resources through internet. The advantages associated with MCC are low initial investment by a user, low cost of operation and maintenance. There are also several problems related to the MCC which are limited battery life, storage and bandwidth, diverse operating systems of mobile devices and security. Various solutions for MCC problems have been developed with their own advantages and disadvantages. This paper presents a survey of MCC, its architecture, its problems and existing solution of those problems and advantages and disadvantages of different solutions.