Appium Automation tool Desired Capabilities to run on simulator

public WebDriver driver = null;

DesiredCapabilities capabilities = new DesiredCapabilities();

capabilities.setCapability(CapabilityType.BROWSER_NAME, "iOS");

capabilities.setCapability(CapabilityType.VERSION, "6.1");

capabilities.setCapability(CapabilityType.PLATFORM, "Mac");

capabilities.setCapability("device", "iPhone");

capabilities.setCapability("app","/Users/abc/Desktop/MyiOSApp.app");

driver = new RemoteWebDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);