Throughput maximization of a hybrid dynamic frame aggregation and block-ACK scheme for 60 GHz high speed communications

Recently, a strong demand on high data rate wireless communication can be observed. The development of multi-gigabit wireless transmission systems has become very attractive. For achieving such data rates, the exploitation of 60 GHz mm wave is a very promising technical approach and has been adopted in IEEE 802.15.3c. Except for physical layer (PHY) designs, the Medium Access Control (MAC) layer design is also crucial for the achievable system throughput (TP). Among the MAC functionalities, the acknowledgment (ACK) mechanism is a very important component affecting the transmission reliability and efficiency. Based on the ACK-mechanisms in 802.15.3c, this paper proposes a Hybrid Dynamic Frame Aggregation and Block-ACK (HD-FABA) scheme, which can further enhance the transmission efficiency and the system throughput. A theoretical model is developed to enable efficient parameter optimization and throughput maximization. In this way, the system can adaptively adjust its parameters according to the PHY conditions, so that the PHY data rate is exploited at best. The effectiveness of the proposed scheme was verified by numerical simulations.