Single frequency networks (SFN) have gradually replaced multi-frequency networks (MFN) for broadband digital terrestrial broadcasting due to their higher spectral efficiency. However, the growth of mobile services and the complexity of city building environments limit single frequency content with severe attenuation within the overlap region. Recently the cloud-transmission broadcast networks have attracted much attention because of their simple networking specifications, flexible transmission systems and higher reuse frequency. The negative signal receive threshold of cloud transmission networks ensures system performance in the overlap region between two base stations for a strong echo channel. This study focuses on the challenge of the overlap region between multiple base stations for cloud transmission systems with a spread spectrum coding scheme based on Walsh sequences. Simulations of the system performance in the overlap region as well as multi-service superposition show that the cloud transmission broadcasting network scheme has improved anti-multipath fading and multi-service transmission. The scheme is easy to implement and compatible with other broadcasting protocols, which allows it to meet the requirement of high-definition transmissions and mobile support of the next generation digital broadcasting networks.