IEEE 802.11e Wireless Local Area Networks (WLANs) provide multiple and high transmission rates to improve the system throughput by adapting its transmission rate. Since the IEEE 802.11standard did not specify a precise rate controlling algorithm, we propose a new Hybrid Rate Adaptation Algorithm (denoted as HR2A) for video transmission over 802.11e networks. The HR2A scheme adjusts the data transmission rate based on two metrics: the RSSI (Received Signal Strength Indicator) and the packets loss rate. Through simulations; we investigate the feasibility and the performance of HR2A. The metrics used to evaluate the effectiveness of HR2A are: Peak Signal to Noise Ratio (PSNR), average End-to-end Delay, effective throughput and packets loss rate. Our simulation results show that the applying of HR2A improves the quality of transmitted video streams H.264/SVC.